能简算的要简算 ,[5⼀6-(5⼀14-2⼀7)×7⼀18

2025-03-04 09:26:16
推荐回答(1个)
回答1:

[5/6 - (5/14 - 2/7)]*7/18
= (5/6 - 1/14)*7/18
= (32/42)*7/18
= 8/27