lowest common denominator

lowest common denominator (plural lowest common denominators)

1. (mathematics) The smallest positive integer which is a multiple of every denominator of several fractions.

   The lowest common denominator of ${\displaystyle 1/6}$ and ${\displaystyle 3/10}$ is 30.

2. (figuratively) The most simple or base shared interest or characteristic among a group or collection of people etc.

   Reality TV really is appealing to the lowest common denominator in audiences.

• least common denominator

• lowest common multiple
• least common multiple
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