根据比例的基本性质.在横线里填上合适的数.(1)______:4.5=0.4:9(2) 0.3 4 = ()

2025-03-29 01:30:35
推荐回答(1个)
回答1:

(1)4.5×0.4÷9=0.2;
(2)0.3×32÷4=2.4;
(3)
7
9
×
3
5
÷
1
2

=
7
15
÷
1
2

=
14
15

(4)12×3÷18=2;
(5)
1
12
×8÷4

=
2
3
÷4

=
1
6

(6)0.5×
1
4
÷
1
16

=
1
8
÷
1
16

=2.
故答案为:0.2;2.4;
14
15
;2;
1
6
;2.