| 1÷2 |
| 4×2 |
| 1 |
| 16 |
故答案为：
| 1 |
| 16 |
一个分数的分子扩大到原来的2倍，分母缩小到原来的1/2后得到1/4，原分数是 _ ．
一个分数的分子扩大到原来的2倍，分母缩小到原来的
后得到
，原分数是 ___ ．
| 1 |
| 2 |
| 1 |
| 4 |
数学人气：406 ℃时间：2019-10-11 12:09:39
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故答案为：
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