3⼀5+3⼀5-1⼀2简便计算 1-(3⼀4-3⼀10)简便计算?

3⼀4+3⼀5-1⼀2
2024-11-28 16:12:07
推荐回答(2个)
回答1:

简便计算过程如下
3/5+3/5-1/2
=6/5-1/2
=12/10-5/10
=7/10
1-(3/4-3/10)
=1-3/4+3/10
=1/4+3/10
=10/40+12/40
=22/40
=11/20

望采纳

回答2:

脱式计算
3/5+3/5-1/2
=6/5-1/2
=12/10-5/10
=7/10
1-(3/4-3/10)
=1-(15/20-6/20)
=1-9/20
=11/20