common denominator  Mathematics. a number that is a multiple of
all the denominators of a set of fractions. a trait,
characteristic, belief, or the like common to or shared by all
members of a group: Dedication to the cause of freedom was the
common denominator of the American revolutionaries.  1585–95
Unabridged Cite This Source Link To common denominator World
English Dictionary common denominator 1.  an integer exactly
divisible by each denominator of a group of fractions: 1/3, 1/4,
and 1/6 have a common denominator of 12 2.  a belief, attribute,
etc, held in common by members of a class or group  Collins
English Dictionary - Complete & Unabridged 10th Edition Cite
This Source American Heritage Science Dictionary common
denominator   A quantity into which all the denominators of a
set of fractions may be divided without a remainder. For
example, the fractions 1/3 and 2/5 have a common denominator of
15. The American Heritage® Science Dictionary Cite This Source
American Heritage Cultural Dictionary  common