7⼀12+5⼀6-11⼀18的简便计算

2025-04-24 15:00:48
推荐回答(1个)
回答1:

解:根据通分的运用,
原式=7/12+5/6-11/18
=7/12+15/18-11/18
=7/12+4/18
=7/12+2/9
=21/36+8/36
=29/36