题目内容
比较下面各组数的大小,并在横线里填上“>”、“<”或“=”.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
.
(1)
| 3 |
| 10 |
<
<
| 8 |
| 10 |
(2)
| 6 |
| 7 |
>
>
| 1 |
| 7 |
(3)
| 6 |
| 9 |
<
<
| 9 |
| 9 |
(4)
| 5 |
| 5 |
>
>
| 4 |
| 5 |
(5)
| 9 |
| 20 |
<
<
| 18 |
| 20 |
(6)
| 53 |
| 109 |
<
<
| 77 |
| 109 |
(7)
| 9 |
| 10 |
>
>
| 7 |
| 10 |
>
>
| 1 |
| 10 |
(8)
| 1 |
| 8 |
<
<
| 5 |
| 8 |
<
<
| 8 |
| 8 |
(9)
| 13 |
| 18 |
>
>
| 7 |
| 18 |
<
<
| 9 |
| 18 |
分析:根据同分母分数大小比较的方法:分母相同的分数,分子大的这个分数就大进行比较.
解答:解:(1)
<
,
(2)
>
,
(3)
<
,
(4)
>
,
(5)
<
,
(6)
<
,
(7)
>
>
,
(8)
<
<
,
(9)
>
<
.
故答案为:<,>,<,>,<,<,>,>,<,<,>,<.
| 3 |
| 10 |
| 8 |
| 10 |
(2)
| 6 |
| 7 |
| 1 |
| 7 |
(3)
| 6 |
| 9 |
| 9 |
| 9 |
(4)
| 5 |
| 5 |
| 4 |
| 5 |
(5)
| 9 |
| 20 |
| 18 |
| 20 |
(6)
| 53 |
| 109 |
| 77 |
| 109 |
(7)
| 9 |
| 10 |
| 7 |
| 10 |
| 1 |
| 10 |
(8)
| 1 |
| 8 |
| 5 |
| 8 |
| 8 |
| 8 |
(9)
| 13 |
| 18 |
| 7 |
| 18 |
| 9 |
| 18 |
故答案为:<,>,<,>,<,<,>,>,<,<,>,<.
点评:本题主要考查了学生对同分母分数大小比较方法的掌握情况.
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