(5⼀6-3⼀4)÷5⼀12÷9⼀5 3⼀7÷[5⼀7-(3⼀7+1⼀5)] 这两道题目要求简便计算 可是找不到 简便

2024-12-16 14:41:59
推荐回答(1个)
回答1:

(5/6-3/4)÷5/12÷9/5
=
(5/6-3/4)*12/5*5/9
=
(5/6-3/4)*4/3=5/3-1=2/3