题目内容
化简下面各比.
21:35 0.36:0.2
:
.
21:35 0.36:0.2
| 1 |
| 8 |
| 1 |
| 7 |
①21:35,
=(21÷7):(35÷7),
=3:5;
②0.36:0.2,
=(0.36×100):(0.2×100),
=36:20,
=(36÷4):(20÷4),
=9:5;
③
:
,
=(
×56):(
×56),
=7:8.
=(21÷7):(35÷7),
=3:5;
②0.36:0.2,
=(0.36×100):(0.2×100),
=36:20,
=(36÷4):(20÷4),
=9:5;
③
| 1 |
| 8 |
| 1 |
| 7 |
=(
| 1 |
| 8 |
| 1 |
| 7 |
=7:8.
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