脱式计算。 5⼀6-2⼀5+(2⼀5-1⼀6)

2024-11-08 12:02:25
推荐回答(1个)
回答1:

5/6-2/5+(2/5-1/6)
=5/6-2/5+2/5-1/6
=5/6-1/6-2/5+2/5
=2/3