题目内容
把下面各比化成最简整数比.
15:12
1.8:0.6
:
.
15:12
1.8:0.6
| 1 |
| 3 |
| 3 |
| 4 |
15:12
=(15÷3):(12÷3)
=5:4
1.8:0.6
=(1.8×5):(0.6×5)
=9:3
=3:1
:
=(
×12):(
×12)
=4:9.
=(15÷3):(12÷3)
=5:4
1.8:0.6
=(1.8×5):(0.6×5)
=9:3
=3:1
| 1 |
| 3 |
| 3 |
| 4 |
=(
| 1 |
| 3 |
| 3 |
| 4 |
=4:9.
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