题目内容
把0.5,
,
,
,1
,
按从大到小的顺序排列是
| 3 |
| 10 |
| 35 |
| 100 |
| 14 |
| 25 |
| 1 |
| 2 |
| 19 |
| 15 |
1
>
>
>0.5>
>
.
| 1 |
| 2 |
| 19 |
| 15 |
| 14 |
| 25 |
| 35 |
| 100 |
| 3 |
| 10 |
1
>
>
>0.5>
>
.
.| 1 |
| 2 |
| 19 |
| 15 |
| 14 |
| 25 |
| 35 |
| 100 |
| 3 |
| 10 |
分析:本题可先将题目中小数化为分数,带分数化成假分数后,将题目中的分数进行通分后再进行比较.
解答:解:由于1
=
=
,
=
,
>
,
则1
>
;
0.5=
,
由于
=
,
=
,
=
>
>
>
,
则
>0.5>
>
.
又假分数与带分数大于真分数,
所以1
>
>
>0.5>
>
.
故答案为:1
>
>
>0.5>
>
.
| 1 |
| 2 |
| 3 |
| 2 |
| 45 |
| 30 |
| 19 |
| 15 |
| 38 |
| 30 |
| 45 |
| 30 |
| 38 |
| 30 |
则1
| 1 |
| 2 |
| 19 |
| 15 |
0.5=
| 1 |
| 2 |
由于
| 3 |
| 10 |
| 30 |
| 100 |
| 14 |
| 25 |
| 56 |
| 100 |
| 1 |
| 2 |
| 50 |
| 100 |
| 56 |
| 100 |
| 50 |
| 100 |
| 35 |
| 100 |
| 30 |
| 100 |
则
| 14 |
| 25 |
| 35 |
| 100 |
| 3 |
| 10 |
又假分数与带分数大于真分数,
所以1
| 1 |
| 2 |
| 19 |
| 15 |
| 14 |
| 25 |
| 35 |
| 100 |
| 3 |
| 10 |
故答案为:1
| 1 |
| 2 |
| 19 |
| 15 |
| 14 |
| 25 |
| 35 |
| 100 |
| 3 |
| 10 |
点评:异分母分数相比较,可先将它们化成同分母分数后,再进行比较.
练习册系列答案
相关题目