能简算的要简算。怎么算? 8⼀9+7⼀12+3⼀4= 2⼀3-(1⼀5+1⼀6)= 1-5⼀15-

2024-11-22 09:57:33
推荐回答(1个)
回答1:

8/9+7/12+3/4
=32/36+21/36+27/36
=53/36+27/36
=20/9