分母 ぶんぼ Meanings Noun denominator Kanji 分 part. Read as ブン. 母 mother. Read as ボ. Words containing 分母 公分母 (こうぶんぼ) common denominator 同分母 (どうぶんぼ) common denominator 分母を払う (ぶんぼをはらう) to cancel a denominator And 2 more. Word lists JLPT N1 Mathematics Jinuma: Japanese Dictionary · Word lists