题目内容
把下面的小数化成分数,分数化成小数.(除不尽保留三位小数)
0.7
0.55
.
0.7
0.55
| 7 |
| 8 |
| 11 |
| 9 |
0.7=
;
0.55=
=
;
=7÷8=0.875;
=11÷9≈1.222.
| 7 |
| 10 |
0.55=
| 55 |
| 100 |
| 11 |
| 20 |
| 7 |
| 8 |
| 11 |
| 9 |
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题目内容
| 7 |
| 8 |
| 11 |
| 9 |
| 7 |
| 10 |
| 55 |
| 100 |
| 11 |
| 20 |
| 7 |
| 8 |
| 11 |
| 9 |