[2⼀3-(3⼀5-1⼀6)]÷7⼀3简便计算?

2025-02-23 06:41:51
推荐回答(1个)
回答1:

[2/3-(3/5-1/6)]÷7/3
=(20/30-18/30+5/30)x3/7
=7/30x3/7
=1/10