2⼀5-1⼀10 1⼀4等于多少(要过程)?

2024-11-29 21:18:17
推荐回答(2个)
回答1:

=0.4-0.1-0.25=0.05

=0.4-0.1+0.25=0.55

回答2:

解:2/5-1/10+1/4
=4/10-1/10+1/4
=3/10+1/4
=3/20+5/20
=8/20
=2/5