题目内容
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 5 |
×
×
.(判断对错)分析:计算
+
,先通分,然后再进一步解答.
| 1 |
| 2 |
| 2 |
| 3 |
解答:解:
+
,
=
+
,
=
.
故答案为:×.
| 1 |
| 2 |
| 2 |
| 3 |
=
| 3 |
| 6 |
| 4 |
| 6 |
=
| 7 |
| 6 |
故答案为:×.
点评:异分母分数相加,先通分,化成同分母分数,然后再根据同分母分数加法的计算方法进行计算.
练习册系列答案
相关题目
题目内容
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 5 |
| 1 |
| 2 |
| 2 |
| 3 |
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 6 |
| 4 |
| 6 |
| 7 |
| 6 |