题目内容
2
+
+4
.
| 1 |
| 3 |
| 3 |
| 2 |
| 5 |
| 6 |
分析:通过观察,此题可先通分,再进行计算.
解答:解:2
+
+4
,
=2
+
+4
,
=8
.
| 1 |
| 3 |
| 3 |
| 2 |
| 5 |
| 6 |
=2
| 2 |
| 6 |
| 9 |
| 6 |
| 5 |
| 6 |
=8
| 2 |
| 3 |
点评:此题属于异分母分数的计算,可先通分,再计算.
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