题目内容
2007÷2007
=
．
| 2007 |
| 2008 |
| 2008 |
| 2009 |
| 2008 |
| 2009 |
分析：2007
=
=
=
，又根据分数除法法则，甲数除以乙数（0除外），等于甲数乘乙数的倒数．所以，2007÷2007
=2007×
=
| 2007 |
| 2008 |
| 2007×2008+2007 |
| 2008 |
| 2007×(2008+1) |
| 2008 |
| 2009×2007 |
| 2008 |
| 2007 |
| 2008 |
| 2008 |
| 2009×2007 |
| 2008 |
| 2009 |
解答：解：2007÷2007
=2007÷
=2007÷
=2007×
=
；
故答案为2007÷2007
=
．
| 2007 |
| 2008 |
=2007÷
| 2007×2008+2007 |
| 2008 |
=2007÷
| 2007×(2008+1) |
| 2008 |
=2007×
| 2008 |
| 2009×2007 |
=
| 2008 |
| 2009 |
故答案为2007÷2007
| 2007 |
| 2008 |
| 2008 |
| 2009 |
点评：完成本题时要细心，能用简便方法的用简便方法．
练习册系列答案
相关题目