题目内容
计算:
÷
÷
.
| 5 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
分析:把除法改为乘法,约分计算即可.
解答:解:
÷
÷
,
=
×
×3,
=
.
| 5 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
=
| 5 |
| 12 |
| 4 |
| 3 |
=
| 5 |
| 3 |
点评:完成此题,主要是运算符号的改变以及通过约分简算.
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题目内容
| 5 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
| 5 |
| 12 |
| 3 |
| 4 |
| 1 |
| 3 |
| 5 |
| 12 |
| 4 |
| 3 |
| 5 |
| 3 |