题目内容
化简比.
12:16
:1
4.5:2.710:6.
12:16
| 3 |
| 4 |
| 1 |
| 8 |
12:16=3:4;
:1
=
:
=6:9=2:3;
4.5:2.7=45:27=5:3;
10:6=5:3.
| 3 |
| 4 |
| 1 |
| 8 |
| 3 |
| 4 |
| 9 |
| 8 |
4.5:2.7=45:27=5:3;
10:6=5:3.
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