题目内容
看“分数墙”列式计算

分析:根据题意,从左向右是10个
,即
,从右向左是8个
,即
,然后再相加即可.
| 1 |
| 12 |
| 10 |
| 12 |
| 1 |
| 12 |
| 8 |
| 12 |
解答:解:
+
=
=
.
| 10 |
| 12 |
| 8 |
| 12 |
| 20 |
| 12 |
| 5 |
| 3 |
点评:同分母分数相加,分母不变,只把分子相加.
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题目内容
| 1 |
| 12 |
| 10 |
| 12 |
| 1 |
| 12 |
| 8 |
| 12 |
| 10 |
| 12 |
| 8 |
| 12 |
| 20 |
| 12 |
| 5 |
| 3 |