5⼀6-3⼀10-1⼀5简便计算

2025-06-29 09:15:55
推荐回答(1个)
回答1:

5/6-3/10-1/5
=5/6-(3/10+1/5)
=5/6-(3/10+2/10)
=5/6-5/10
=5/6-1/2
=5/6-3/6
=2/6
=1/3