来自陈旎璐的问题
【7/25÷8/5+3/25×7/8简便计算(1/36÷1/4+1/9)÷5/6简便计算】
7/25÷8/5+3/25×7/8简便计算(1/36÷1/4+1/9)÷5/6简便计算
1回答
2020-05-15 00:48
【7/25÷8/5+3/25×7/8简便计算(1/36÷1/4+1/9)÷5/6简便计算】
7/25÷8/5+3/25×7/8简便计算(1/36÷1/4+1/9)÷5/6简便计算
7/25÷8/5+3/25×7/8
=7/25×5/8+7/25×3/8
=7/25×(5/8+3/8)
=7/25×1
=7/25
(1/36÷1/4+1/9)÷5/6
=(1/36×4+1/9)×6/5
=(1/9+1/9)×6/5
=2/9×6/5
=4/15