六年级上册数学分数脱式计算

1、7/25×4/9+7/25×5/9 =7/25×(4/9+5/9) =7/25×1 =7/25 2、60×(1/12+1/15+1/4) =60×1/12+60×1/15+60×1/4 =5+4+15 =24 3、(5/12-3/8)×72 =5/12×72-3/8×72 =30-27 =3 4、6/7-5/24÷7/12 =6/7-5/24×12/7 =12/14-5/14...