帯分数(たいぶんすう)

たいぶんすう
noun
mixed number
academicnumbereducation
1. mixed number
A number written as a whole number with a proper fraction beside it, such as 1 and 2/3. Japanese textbooks introduce it as the readable way of expressing a 仮分数(かぶんすう) (improper fraction).
答(こた)えを帯分数(たいぶんすう)で書(か)く。
Write the answer as a mixed number.
帯分数(たいぶんすう)のほうが大(おお)きさが分(わ)かりやすい。
It's easier to grasp the size when it's written as a mixed number.
帯分数(たいぶんすう)は整数(せいすう)の部分(ぶぶん)と真分数(しんぶんすう)の部分(ぶぶん)に分(わ)けて考(かんが)えると計算(けいさん)しやすい。
Mixed numbers are easier to calculate with if you think of them as a whole-number part and a proper-fraction part.

帯(たい) (to wear, to carry alongside) + 分数(ぶんすう) (fraction): a fraction carrying a whole number with it.

Common collocations

  • 帯分数(たいぶんすう)に直(なお)す: to convert into a mixed number
  • 帯分数(たいぶんすう)で表(あらわ)す: to express as a mixed number

Similar words

Related Words

Compare: 仮分数(かぶんすう) (improper fraction)
Compare: 真分数(しんぶんすう) (proper fraction)
Compare: 整数(せいすう) (whole number, integer)
general
Added 2026.8.16 15:19 · Revised 2026.9.2 13:02
30500/30693_taibunsuu