二分之七乘八分之五,加十四分之十一除以五分之八,简便运算?

2025-04-30 08:56:13
推荐回答(1个)
回答1:

7/2*5/8+11/14÷8/5
=7/2*5/8+11/14*5/8
=5/8*(7/2+11/14)
=5/8*60/14
=75/28
=2又19/28