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Noun: common denominator  'kó-mun di'nó-mu,ney-tu(r)
  1. An integer that is a common multiple of the denominators of two or more fractions
    "To add 1/2 and 1/3, we need to find a common denominator"
     
  2. An attribute that is common to all members of a category
    "The ability to fly is a common denominator among birds"

Derived forms: common denominators

Type of: attribute, denominator

Encyclopedia: Common denominator