5⼀8 +(3⼀8-7⼀12),括起来等于几?

2024-11-29 01:34:08
推荐回答(1个)
回答1:

5/8 +(3/8-7/12)
=5/8+3/8-7/12
=(5/8+3/8)-7/12
=1-7/12
=5/12