题目内容

化简下面各比,并求比值
154:77
0.25:2
3
5
5
6
5.6:1.12
6
7
:0.6
6厘米:0.8米.
(1)154:77
=(154÷77):(77÷77)
=2:1

154:77
=154÷77
=2;

(2)0.25:2
=(0.25÷0.25):(2÷0.25)
=1:8

0.25÷2
=0.25÷2
=
1
8


(3)
3
5
5
6

=(
3
5
×30):(
5
6
×30)
=18:25

3
5
5
6

=
3
5
÷
5
6

=
3
5
×
6
5

=
18
25


(4)5.6:1.12
=(5.6÷1.12):(1.12÷1.12)
=5:1

5.6:1.12
=5.6÷1.12
=5.

(5)
6
7
:0.6
=
6
7
3
5

=(
6
7
×35):(
3
5
×35)
=30:21
=(30÷3):(21÷3)
=10:7

6
7
:0.6
=
6
7
÷
3
5

=
6
7
×
5
3

=
10
7


(6)6厘米:0.8米
=6厘米:80厘米
=(6÷2):(80÷2)
=3:40

6厘米:0.8米
=6厘米÷80厘米
=6÷80
=
3
40
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