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# least common denominator

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noun Mathematics.

the smallest number that is a common denominator of a given set of fractions.

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Also called lowest common denominator.

## Origin of least common denominator

First recorded in 1870â€“75

## Words nearby least common denominator

leash, leash law, leasing, least, least bittern, least common denominator, least common multiple, least concern, least flycatcher, least killifish, least of all

Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, Â© Random House, Inc. 2023

## British Dictionary definitions for least common denominator

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
Â© William Collins Sons & Co. Ltd. 1979, 1986 Â© HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012