题目内容
在横线里填上“>”、“<”或“=”.
.
| 11 |
| 2 |
>
>
2| 1 |
| 4 |
| 8 |
| 12 |
=
=
| 2 |
| 3 |
| 3 |
| 8 |
=
=
| 9 |
| 24 |
| 5 |
| 7 |
<
<
| 7 |
| 9 |
分析:先通分成同分子或同分母的分数,再根据同分子的分数,分母大的分数小;或分母相同的分数,分子大的分数大,比较大小.
解答:解:①
=
,2
=
,
>
,
>2
;
②
=
;
③
=
,
=
;
④
=
,
=
,
<
,
<
.
故答案为:>,=,=,<.
| 11 |
| 2 |
| 44 |
| 8 |
| 1 |
| 4 |
| 18 |
| 8 |
| 44 |
| 8 |
| 18 |
| 8 |
| 11 |
| 2 |
| 1 |
| 4 |
②
| 8 |
| 12 |
| 2 |
| 3 |
③
| 9 |
| 24 |
| 3 |
| 8 |
| 3 |
| 8 |
| 9 |
| 24 |
④
| 5 |
| 7 |
| 45 |
| 63 |
| 7 |
| 9 |
| 49 |
| 63 |
| 45 |
| 63 |
| 49 |
| 63 |
| 5 |
| 7 |
| 7 |
| 9 |
故答案为:>,=,=,<.
点评:解决本题的关键是先通分,再比较大小.
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