常じょう分ぶん数すう

noun

proper fraction

Mathematical term for a fraction where the numerator is less than the denominator.

• 常じょう分ぶん数すうは、分ぶん子しが分ぶん母ぼより小ちいさい分ぶん数すうです。

  A proper fraction is a fraction where the numerator is smaller than the denominator.