lowest common denominator

noun

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

Finding the lowest common denominator is essential in simplifying fractions.

意味（1）

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

The lowest common denominator of ¹⁄₆ and ³⁄₁₀ is 30.

意味（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.