求出下面各比的比值. 45:9= |
0.7:1.4= |
|
18:27= | ||||
0.21:2.1= |
|
3:19= | 9.1:0.7= | ||||
0.125:
|
81:3= | 1:0.7= | 0.25:
| ||||
4:12= | 0.7:1= |
|
解:45:9=5 | 0.7:1.4=0.5 |
|
18:27=
| ||||||||
0.21:2.1=0.1 |
|
3:19=
|
9.1:0.7=13 | ||||||||
0.125:
|
81:3=27 | 1:0.7=1
|
0.25:
| ||||||||
4:12=
|
0.7:1=0.7 |
|
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