题目内容
化简下面各比
| 0.15:0.9 |
| 45分:
|
| 2 |
| 3 |
=(
| 2 |
| 3 |
=2:3.6,
=(2×5):(3.6×5),
=10:18,
=(10÷2):(18÷2),
=5:9;
0.15:0.9,
=(0.15×100):(0.9×100),
=15:90,
=(15÷15):(90÷15),
=1:6,
| 5 |
| 8 |
| 7 |
| 12 |
=(
| 5 |
| 8 |
| 7 |
| 12 |
=15:14,
45分:
| 1 |
| 4 |
=45分钟:15分钟,
=45:15,
=(45÷15):(15÷15),
=3:1.
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