题目内容
把下面分数改写成分子是12而大小不变的分数.
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| 60 |
| 75 |
| 24 |
| 98 |
| 1 |
| 3 |
| 2 |
| 7 |
| 6 |
| 11 |
分析:分数的基本性质是:分数的分子和分母同时乘或除以一个相同的数(0除外),分数的大小不变.据此解答即可.
解答:解:
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;
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;
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;
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;
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.
| 60 |
| 75 |
| 60÷5 |
| 75÷5 |
| 12 |
| 15 |
| 24 |
| 98 |
| 24÷2 |
| 98÷2 |
| 12 |
| 49 |
| 1 |
| 3 |
| 1×12 |
| 3×12 |
| 12 |
| 36 |
| 2 |
| 7 |
| 2×6 |
| 7×6 |
| 12 |
| 42 |
| 6 |
| 11 |
| 6×2 |
| 11×2 |
| 12 |
| 22 |
点评:此题主要考查了分数的基本性质的灵活应用.
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