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English definition of “common denominator”

common denominator

noun [C] (NUMBER)    specialized
a number that can be divided exactly by all the denominators (= numbers under the line) in a group of fractions: 12 is a common denominator of 1/3 and 1/4.Terms for numbers
(Definition of common denominator noun (NUMBER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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