7⼀8-4⼀5+9⼀8-1⼀5等于多少?

2024-11-23 04:17:31
推荐回答(1个)
回答1:

7/8-4/5+9/8-1/5
=(7/8+9/8)-(4/5+1/5)
=2-1
=1