题目内容
| 4 |
| 7 |
| 3 |
| 4 |
| 2 |
| 3 |
分析:根据题意可知:用
的倒数即
,用
加上
与
的积即可,列式计算可得到答案.
| 4 |
| 7 |
| 7 |
| 4 |
| 7 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
解答:解:
+
×
=
+
=2
答:和是2
.
| 7 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
=
| 7 |
| 4 |
| 1 |
| 2 |
=2
| 1 |
| 4 |
答:和是2
| 1 |
| 4 |
点评:此题主要考查的是分数四则混合运算.
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题目内容
| 4 |
| 7 |
| 3 |
| 4 |
| 2 |
| 3 |
| 4 |
| 7 |
| 7 |
| 4 |
| 7 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
| 7 |
| 4 |
| 3 |
| 4 |
| 2 |
| 3 |
| 7 |
| 4 |
| 1 |
| 2 |
| 1 |
| 4 |
| 1 |
| 4 |