(2⼀5+1⼀3)⼀2⼀3*(1-3⼀4)简便运算

2024-12-17 20:15:47
推荐回答(1个)
回答1:

(2/5+1/3)/2/3*(1-3/4)
=11/15*3/2*1/4
=11/10*1/4
=11/40