解:11.6/13的分数单位是( 58/65 ) ∵已知需求出11.6/13的分数单位是多少 X ÷ Y = X / Y = Z ∴11.6/13 = 11.6 ÷ 13 = (11×10+6)/10 × 1/13 = 116/10 × 1/13 = 58/5 × 1/13 = 58/65 答:11.6/13的分数单位是58/65