题目内容
直接写出得数
|
|
| ||||||||||||
|
1-
|
|
考点:分数的加法和减法
专题:运算顺序及法则
分析:同分母分数相加减的计算法则:分母不变,只把分子相加减,据此直接计算即可解答问题.
解答:
解:
-
=
=
=
+
=
=1
+
=
=
+
=
=
=
1-
=
=
-
=
=
=
.
| 3 |
| 8 |
| 1 |
| 8 |
| 3-1 |
| 8 |
| 2 |
| 8 |
| 1 |
| 4 |
| 3 |
| 6 |
| 3 |
| 6 |
| 6 |
| 6 |
| 2 |
| 5 |
| 1 |
| 5 |
| 2+1 |
| 5 |
| 3 |
| 5 |
| 3 |
| 10 |
| 1 |
| 10 |
| 3+1 |
| 10 |
| 4 |
| 10 |
| 2 |
| 5 |
1-
| 5 |
| 7 |
| 7-5 |
| 7 |
| 2 |
| 7 |
| 8 |
| 9 |
| 2 |
| 9 |
| 8-2 |
| 9 |
| 6 |
| 9 |
| 2 |
| 3 |
点评:此题主要考查同分母分数的加减法的计算应用,要注意计算结果是最简分数.
练习册系列答案
相关题目