Last Updated：2025/11/21

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

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lowest common denominator

Source Word

lowest common denominator

figuratively

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

Japanese Meaning

（数学）複数の分数の分母すべての倍数となる最小の正の整数、すなわち最小公倍数

To add 1/3 and 1/4, calculate the lowest common denominator and rewrite each fraction with that common denominator.

1/3と1/4を足すには、分母の最小公倍数を求めて、それぞれの分数をその共通の分母で書き直します。

Sense（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.

Sense（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.

lowest common denominators

（ plural ）