题目内容
把下面的小数化成分数,分数化成小数(不能化成有限小数的保留两位小数).
0.6 0.25 0.045
.
0.6 0.25 0.045
| 4 |
| 5 |
| 12 |
| 5 |
| 7 |
| 15 |
(1)0.6=
=
,
(2)0.25=
=
,
(3)0.045=
=
,
(4)
=4÷5=0.8,
(5)
=12÷5=2.4,
(6)
=7÷15≈0.47.
| 6 |
| 10 |
| 3 |
| 5 |
(2)0.25=
| 25 |
| 100 |
| 1 |
| 4 |
(3)0.045=
| 45 |
| 1000 |
| 9 |
| 200 |
(4)
| 4 |
| 5 |
(5)
| 12 |
| 5 |
(6)
| 7 |
| 15 |
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