分数(ぶんすう)

ぶんすう
noun
fraction (mathematics)
1. fraction
A number expressed as a ratio of two integers (numerator over denominator).
小学校(しょうがっこう)で分数(ぶんすう)を習(なら)った。
I learned fractions in elementary school.
分数(ぶんすう)の足(た)し算(ざん)は通分(つうぶん)が必要(ひつよう)だ。
Adding fractions requires finding a common denominator.
二分(にぶん)の一(いち)は分数(ぶんすう)で表(あらわ)すと1/2だ。
One half is expressed as 1/2 as a fraction.

COMPONENTS:

  • 分子(ぶんし) - numerator (top number)
  • 分母(ぶんぼ) - denominator (bottom number)

TYPES:

  • 真分数(しんぶんすう) - proper fraction (numerator < denominator)
  • 仮分数(かぶんすuu) - improper fraction (numerator ≥ denominator)
  • 帯分数(たいぶんすう) - mixed number

OPERATIONS:

  • 通分(つうぶん) - finding common denominator
  • 約分(やくぶん) - reducing/simplifying fractions

RELATED MATH TERMS:

  • 整数(せいすう) - integer
  • 小数(しょうすう) - decimal
  • 百分率(ひゃくぶんりつ) - percentage
general
Added 2026.1.18 21:04 · Revised 2026.1.19 21:17
06500/06952_bunsuu