十一分之五乘七分之八加十一分之三乘你分之五等于多少简便计算?

2024-11-28 23:39:56
推荐回答(1个)
回答1:

简便计算
5/11x8/7+3/11x5/7
=5/11x8/7+5/11x3/7
=5/11x(8/7+3/7)
=5/11x11/7
=5/7