题干
不改变分式的值，把分子分母的系数化为整数：
=____ ．
| 0 |
| . |
| 5 |
| a |
| + |
| b |
| 0 |
| . |
| 2 |
| a |
| - |
| 0 |
| . |
| 3 |
| b |
答案(点此获取答案解析）
| 5 |
| a |
| + |
| b |
| 2 |
| a |
| - |
| 3 |
| b |
| 0 |
| . |
| 5 |
| a |
| + |
| b |
| 0 |
| . |
| 2 |
| a |
| - |
| 0 |
| . |
| 3 |
| b |
| 5 |
| a |
| + |
| b |
| 2 |
| a |
| - |
| 3 |
| b |
