{"action":"closed","issue":{"url":"https://api.github.com/repos/Khan/khan-exercises/issues/133741","labels_url":"https://api.github.com/repos/Khan/khan-exercises/issues/133741/labels{/name}","comments_url":"https://api.github.com/repos/Khan/khan-exercises/issues/133741/comments","events_url":"https://api.github.com/repos/Khan/khan-exercises/issues/133741/events","html_url":"https://github.com/Khan/khan-exercises/issues/133741","id":23779429,"number":133741,"title":"Dividing decimals 4 - Keep getting format wrong","user":{"login":"KhanBugz","id":924247,"avatar_url":"https://avatars.githubusercontent.com/u/924247?v=3","gravatar_id":"","url":"https://api.github.com/users/KhanBugz","html_url":"https://github.com/KhanBugz","followers_url":"https://api.github.com/users/KhanBugz/followers","following_url":"https://api.github.com/users/KhanBugz/following{/other_user}","gists_url":"https://api.github.com/users/KhanBugz/gists{/gist_id}","starred_url":"https://api.github.com/users/KhanBugz/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/KhanBugz/subscriptions","organizations_url":"https://api.github.com/users/KhanBugz/orgs","repos_url":"https://api.github.com/users/KhanBugz/repos","events_url":"https://api.github.com/users/KhanBugz/events{/privacy}","received_events_url":"https://api.github.com/users/KhanBugz/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/ipad","name":"ipad","color":"ededed"},{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/safari","name":"safari","color":"e102d8"},{"url":"https://api.github.com/repos/Khan/khan-exercises/labels/wrong-or-unclear","name":"wrong-or-unclear","color":"FFA500"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2013-12-05T10:48:38Z","updated_at":"2015-11-20T05:24:21Z","closed_at":"2015-11-20T05:24:21Z","body":"I find I keep getting the formatting wrong for writing a ratio as 2:1 instead of 2/1. Perhaps accepting the correct integers and any separator that isn't standard could be a chance to suggest the more standard ones rather than grading the entire answer wrong? Programming wise I would suggest determine the item delimiter by extracting the expected numbers either side of any character, isolate that character and present an \"essentially correct but..\" Result with a preferred structure suggestion\n\n[dividing_decimals_4.html?seed=177&problem=0](http://sandcastle.kasandbox.org/media/castles/Khan:master/exercises/dividing_decimals_4.html?seed=177&problem=0&debug&lang=en)\n\n[Answer timeline](http://sandcastle.kasandbox.org/media/castles/Khan:master/exercises/dividing_decimals_4.html?seed=177&problem=0&debug&lang=en&activity=%5B%5D)\n\n    []\n\nLocale: en\n\nUser hash: 208715447\n\nMozilla/5.0 (iPad; CPU OS 6_0_1 like Mac OS X) AppleWebKit/536.26 (KHTML, like Gecko) Mercury/8.0.1 Mobile/10A523 Safari/8536.25\n\nMathJax is loaded, ready, queue length: 0\n\n\n\nstart of log\nloadModule mod /khan-exercises/utils/answer-types.js\nloadModule mod /khan-exercises/utils/tmpl.js\nloadModule mod /khan-exercises/utils/tex.js\nloadModule mod /khan-exercises/utils/jquery.adhesion.js\nloadModule mod /khan-exercises/utils/calculator.js\nloadModule mod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadScript loading /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadScript loaded /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nstartTask...\nstartTask got task undefined\nloadExercise start fractions_on_the_number_line_2.html\nloadExercise start expressing_ratios_as_fractions.html\nloading and rendering multiplying_decimals\nloadExercise start multiplying_decimals.html\nloadExercise got fractions_on_the_number_line_2.html\nloadExercise submod math\nloadModule mod /khan-exercises/utils/math.js\nloadModule mod /khan-exercises/utils/../third_party/raphael.js\nloadExercise submod math-format\nloadModule mod /khan-exercises/utils/math-format.js\nloadModule mod /khan-exercises/utils/expressions.js\nloadExercise submod graphie\nloadModule mod /khan-exercises/utils/graphie.js\nloadModule mod /khan-exercises/utils/kpoint.js\nloadModule mod /khan-exercises/utils/kvector.js\nloadExercise submod word-problems\nloadModule mod /khan-exercises/utils/word-problems.js\nloadExercise submod interactive\nloadModule mod /khan-exercises/utils/interactive.js\nloadModule mod /khan-exercises/utils/../third_party/jquery.mobile.vmouse.js\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish fractions_on_the_number_line_2.html\nloadExercise got multiplying_decimals.html\nloadExercise submod math\nloadExercise submod math-format\nloadExercise submod graphie\nloadExercise submod graphie-helpers-arithmetic\nloadModule mod /khan-exercises/utils/graphie-helpers-arithmetic.js\nloadExercise submod word-problems\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish multiplying_decimals.html\nloaded multiplying_decimals, now rendering\nstart of makeProblem\nchose problem type and seed for multiplying_decimals\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\n(mathLoad not a fn; src undefined)\n(../third_party/raphaelLoad not a fn; src undefined)\n(math-formatLoad not a fn; src undefined)\n(expressionsLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\n(kvectorLoad not a fn; src undefined)\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(math-format not a fn; src undefined)\n(expressions not a fn; src undefined)\nrunning graphie\nMathJax done typesetting (\\LARGE{3})\nMathJax done typesetting (\\LARGE{7})\nMathJax done typesetting (\\LARGE{9})\nMathJax done typesetting (\\LARGE{0})\nMathJax done typesetting (\\LARGE{2})\nMathJax done typesetting (\\LARGE{9})\nMathJax done typesetting (\\LARGE{1})\nMathJax done typesetting (\\LARGE{\\times\\vphantom{0}})\nMathJax done typesetting (\\LARGE{.})\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type decimal\nvalidator created\nloadExercise got expressing_ratios_as_fractions.html\nloadExercise submod math\nloadExercise submod math-format\nloadExercise submod word-problems\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish expressing_ratios_as_fractions.html\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(math-format not a fn; src undefined)\n(expressions not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\n(word-problems not a fn; src undefined)\nloadExercise start dividing_decimals_4.html\nloading and rendering fractions_on_the_number_line_2\nloaded fractions_on_the_number_line_2, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(graphie-helpers-arithmeticCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for fractions_on_the_number_line_2\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\n(mathLoad not a fn; src undefined)\n(../third_party/raphaelLoad not a fn; src undefined)\n(math-formatLoad not a fn; src undefined)\n(expressionsLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\n(kvectorLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\n(interactiveLoad not a fn; src undefined)\n(../third_party/jquery.mobile.vmouseLoad not a fn; src undefined)\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nMathJax done typesetting (\\color{orange}{\\text{orange dot}})\nMathJax done typesetting (\\color{orange}{\\dfrac{5}{6}})\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(math-format not a fn; src undefined)\n(expressions not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(interactive not a fn; src undefined)\n(../third_party/jquery.mobile.vmouse not a fn; src undefined)\ndone with runModules\ndecided on answer type custom\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(math-format not a fn; src undefined)\n(expressions not a fn; src undefined)\nrunning graphie\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(word-problems not a fn; src undefined)\n(interactive not a fn; src undefined)\n(../third_party/jquery.mobile.vmouse not a fn; src undefined)\nvalidator created\nloadExercise got dividing_decimals_4.html\nloadExercise submod math\nloadExercise submod graphie\nloadExercise submod graphie-helpers-arithmetic\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish dividing_decimals_4.html\nloadExercise start number_line.html\nloading and rendering expressing_ratios_as_fractions\nloaded expressing_ratios_as_fractions, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(interactiveCleanup not a fn; src undefined)\n(../third_party/jquery.mobile.vmouseCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(graphieCleanup not a fn; src undefined)\n(kpointCleanup not a fn; src undefined)\n(kvectorCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(interactiveCleanup not a fn; src undefined)\n(../third_party/jquery.mobile.vmouseCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for expressing_ratios_as_fractions\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\n(mathLoad not a fn; src undefined)\n(../third_party/raphaelLoad not a fn; src undefined)\n(math-formatLoad not a fn; src undefined)\n(expressionsLoad not a fn; src undefined)\nrunning word-problemsLoad\nran word-problemsLoad\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\n(math-format not a fn; src undefined)\n(expressions not a fn; src undefined)\n(word-problems not a fn; src undefined)\ndone with runModules\ndecided on answer type improper\nvalidator created\nloadExercise got number_line.html\nloadExercise submod math\nloadExercise submod graphie\nloadExercise submod word-problems\nloadExercise submod interactive\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish number_line.html\nloadExercise start similar_triangles_2.html\nloading and rendering dividing_decimals\nloaded dividing_decimals, now rendering\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\n(answer-typesCleanup not a fn; src undefined)\n(tmplCleanup not a fn; src undefined)\nrunning texCleanup\nran texCleanup\n(jquery.adhesionCleanup not a fn; src undefined)\n(calculatorCleanup not a fn; src undefined)\n(mathCleanup not a fn; src undefined)\n(../third_party/raphaelCleanup not a fn; src undefined)\n(math-formatCleanup not a fn; src undefined)\n(expressionsCleanup not a fn; src undefined)\n(word-problemsCleanup not a fn; src undefined)\nstart of makeProblem\nchose problem type and seed for dividing_decimals\ncloned problem\ncloned global elements\nran tmplApply to vars and main elements\nran tmplApply to [id]\nremoved hints from DOM\nevaled inline scripts\nadded inline styles\n(answer-typesLoad not a fn; src undefined)\nrunning tmplLoad\nran tmplLoad\n(texLoad not a fn; src undefined)\n(jquery.adhesionLoad not a fn; src undefined)\n(calculatorLoad not a fn; src undefined)\n(mathLoad not a fn; src undefined)\n(../third_party/raphaelLoad not a fn; src undefined)\nrunning graphieLoad\nran graphieLoad\nrunning kpointLoad\nran kpointLoad\n(kvectorLoad not a fn; src undefined)\n(graphie-helpers-arithmeticLoad not a fn; src undefined)\ndone with runModules Load\n(answer-types not a fn; src undefined)\nrunning tmpl\nran tmpl\nrunning tex\nran tex\n(jquery.adhesion not a fn; src undefined)\n(calculator not a fn; src undefined)\n(math not a fn; src undefined)\n(../third_party/raphael not a fn; src undefined)\nrunning graphie\nMathJax done typesetting (\\LARGE{.})\nMathJax done typesetting (\\LARGE{.})\nMathJax done typesetting (\\LARGE{2})\nMathJax done typesetting (\\LARGE{9})\nMathJax done typesetting (\\LARGE{1})\nMathJax done typesetting (\\LARGE{3})\nMathJax done typesetting (\\LARGE{2})\nMathJax done typesetting (\\LARGE{2})\nMathJax done typesetting (\\LARGE{4})\nran graphie\n(kpoint not a fn; src undefined)\n(kvector not a fn; src undefined)\n(graphie-helpers-arithmetic not a fn; src undefined)\ndone with runModules\ndecided on answer type decimal\nvalidator created\nloadExercise got similar_triangles_2.html\nloadExercise submod math\nloadExercise submod graphie\nloadExercise submod graphie-helpers\nloadModule mod /khan-exercises/utils/graphie-helpers.js\nloadExercise submod graphie-geometry\nloadModule mod /khan-exercises/utils/graphie-geometry.js\nloadModule mod /khan-exercises/utils/kmatrix.js\nloadModule mod /khan-exercises/utils/kline.js\nloadExercise submod math-format\nloadExercise submod answer-types\nloadExercise submod tmpl\nloadExercise submod tex\nloadExercise submod jquery.adhesion\nloadExercise submod calculator\nloadExercise submod /khan-exercises/third_party/MathJax/2.1/MathJax.js?config=KAthJax-9e2776ffe7d2006f16f36d0d55d9464b\nloadExercise finish similar_triangles_2.html"}}