解:100/87÷4/3等于( 25/29 ) ∵已知需求出100/87÷4/3等于几 ∴100/87 ÷ 4/3 = 100/87 × 3/4 = (25×4)/(29×3) × 3/4 = 25/29 答:100/87÷4/3等于25/29