题目内容
| 5 |
| 9 |
| 2 |
| 3 |
分析:
的分子、分母同时加上3,即
=
=
.
| 5 |
| 9 |
| 5+3 |
| 9+3 |
| 8 |
| 12 |
| 2 |
| 3 |
解答:解:
→
=
=
.
答:
的分子、分母同时加上3,结果等于
.
| 5 |
| 9 |
| 5+3 |
| 9+3 |
| 8 |
| 12 |
| 2 |
| 3 |
答:
| 5 |
| 9 |
| 2 |
| 3 |
点评:此题考查分数性质的灵活应用.
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题目内容
| 5 |
| 9 |
| 2 |
| 3 |
| 5 |
| 9 |
| 5+3 |
| 9+3 |
| 8 |
| 12 |
| 2 |
| 3 |
| 5 |
| 9 |
| 5+3 |
| 9+3 |
| 8 |
| 12 |
| 2 |
| 3 |
| 5 |
| 9 |
| 2 |
| 3 |