How to Calculate 1/1 Minus 17/70

Are you looking to work out and calculate how to subtract 1/1 from 17/70? In this really simple guide, we'll teach you exactly what 1/1 - 17/70 is and walk you through the step-by-process of how to subtract one fraction from another.

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Let's set up 1/1 and 17/70 side by side so they are easier to see:

1 / 1 - 17 / 70

Our denominators are 1 and 70. What we need to do is find the lowest common denominator of the two numbers, which is 70 in this case.

If we multiply the first denominator (1) by 70 we will get 70. If we we multiply the second denominator (70) by 1 we will also get 70. We also need to multiply the numerators above the line by the same amounts so that the fraction values are correct:

1 x 70 / 1 x 70 - 17 x 1 / 70 x 1

This is what 1/1 minus 17/70 looks like with the same denominator:

70 / 70 - 17 / 70


70 - 17 / 70 = 53 / 70

You're done! You now know exactly how to calculate 1/1 - 17/70. Hopefully you understood the process and can use the same techniques to add other fractions together. The complete answer is below (simplified to the lowest form):


Convert 1/1 minus 17/70 to Decimal


53 / 70 = 0.7571

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Preset List of Fraction Subtraction Examples
