题目内容
计算题.
÷
÷
÷
÷…÷
.
| 1 |
| 2 |
| 3 |
| 2 |
| 4 |
| 3 |
| 5 |
| 4 |
| 2013 |
| 2012 |
分析:把除法改为乘法,约分计算即可,最后得数为
,据此解答.
| 1 |
| 2013 |
解答:解:
÷
÷
÷
÷…÷
,
=
×
×
×
×…×
,
=
.
| 1 |
| 2 |
| 3 |
| 2 |
| 4 |
| 3 |
| 5 |
| 4 |
| 2013 |
| 2012 |
=
| 1 |
| 2 |
| 2 |
| 3 |
| 3 |
| 4 |
| 4 |
| 5 |
| 2012 |
| 2013 |
=
| 1 |
| 2013 |
点评:根据题目特点,通过乘除法的转化,约分计算.
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