题目内容
写出两个分母不同的分数(分母不大于6),使它们的和等于
.
+
﹦
;
+
﹦
.
| 5 |
| 6 |
| 1 |
| 2 |
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 3 |
| 5 |
| 6 |
| 1 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
| 2 |
| 3 |
| 5 |
| 6 |
分析:可以把分子进行分解,5=2+3=1+4,然后写成
=
+
,
=
+
,然后化简即可.
| 5 |
| 6 |
| 2 |
| 6 |
| 3 |
| 6 |
| 5 |
| 6 |
| 1 |
| 6 |
| 4 |
| 6 |
解答:解:
=
+
=
+
;
=
+
=
+
;
故答案为:
,
;
,
.
| 5 |
| 6 |
| 2 |
| 6 |
| 3 |
| 6 |
| 1 |
| 3 |
| 1 |
| 2 |
| 5 |
| 6 |
| 1 |
| 6 |
| 4 |
| 6 |
| 1 |
| 6 |
| 2 |
| 3 |
故答案为:
| 1 |
| 2 |
| 1 |
| 3 |
| 1 |
| 6 |
| 2 |
| 3 |
点评:此题考查了分数的拆项,主要是把分子进行拆分,写成两个分数的和.
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