计算下面各题.(能简算的要简算).(1) 3 4 ×40%+ 3 4 ×60%(2) 5 8

2025-02-03 00:08:37
推荐回答(1个)
回答1:

(1)
3
4
×40%+
3
4
×60%,
=
3
4
×(40%+60%),
=
3
4
×1,
=
3
4


(2)
5
8
×
1
9
×80%,
=
5
8
×
8
10
×
1
9

=
1
2
×
1
9

=
1
18