题目内容
试比较-
,-
,-
,-
这四个数的大小.
| 1997 |
| 1998 |
| 97 |
| 98 |
| 1998 |
| 1999 |
| 98 |
| 99 |
∵-
=-
=-1+
-
=-
=-1+
-
=-
=-1+
-
=-
=-1+
∵
>
>
>
(同分子的正分数,分母大的分数比较小)
∴-
<-
<-
<-
.
| 1997 |
| 1998 |
| 1998-1 |
| 1998 |
| 1 |
| 1998 |
-
| 97 |
| 98 |
| 98-1 |
| 98 |
| 1 |
| 98 |
-
| 1998 |
| 1999 |
| 1999-1 |
| 1999 |
| 1 |
| 1999 |
-
| 98 |
| 99 |
| 99-1 |
| 99 |
| 1 |
| 99 |
∵
| 1 |
| 98 |
| 1 |
| 99 |
| 1 |
| 1998 |
| 1 |
| 1999 |
∴-
| 1998 |
| 1999 |
| 1997 |
| 1998 |
| 98 |
| 99 |
| 97 |
| 98 |
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