题目内容
写出一个比| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
分析:先把
,
通分得
=
=
=
,
=
=
=
,故答案很好确定了.
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
| 3 |
| 6 |
| 6 |
| 12 |
| 9 |
| 18 |
| 2 |
| 3 |
| 5 |
| 6 |
| 8 |
| 12 |
| 12 |
| 18 |
解答:解:∵
=
=
=
,
=
=
=
∴
<
<
.
| 1 |
| 2 |
| 3 |
| 6 |
| 6 |
| 12 |
| 9 |
| 18 |
| 2 |
| 3 |
| 5 |
| 6 |
| 8 |
| 12 |
| 12 |
| 18 |
∴
| 1 |
| 2 |
| 7 |
| 12 |
| 2 |
| 3 |
点评:此类题目答案不唯一,在找答案时要把两分数的分母化为同分母的形式.
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