题目内容
| 2 |
| 5 |
| 2 |
| 5 |
| 4 |
| 10 |
×
×
(判断对错)分析:
+
,是同分母分数相加,分母不变,只把分子相加即可,然后再进一步解答.
| 2 |
| 5 |
| 2 |
| 5 |
解答:解:
+
=
=
.
故答案为:×.
| 2 |
| 5 |
| 2 |
| 5 |
| 2+2 |
| 5 |
| 4 |
| 5 |
故答案为:×.
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
| 2 |
| 5 |
| 2 |
| 5 |
| 4 |
| 10 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2 |
| 5 |
| 2+2 |
| 5 |
| 4 |
| 5 |