# common denominator

### noun

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.

## Origin of common denominator

First recorded in 1585–95

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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

## common denominator

### noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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## common denominator

The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

## common denominator

## Note

Figuratively, a common denominator is a common factor in different events: “The common denominator in these crimes is the use of inside knowledge of computer systems.”

The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.