问题 解答题
比较大小
(1)-3与-4
(2)
2
3
-
3
4

(3)-
5
6
-
6
7

(4)-(+3.5)与-|-
11
3
|
答案

(1)∵|-3|=3,|-4|=4,

∴-3>-4;

(2)

2
3
>-
3
4

(3)∵|-

5
6
|=
5
6
=
35
42
,|-
6
7
|=
6
7
=
36
42

∴-

5
6
>-
6
7

(4)∵-(+3.5)=-3.5=-

7
2
=-
21
6
,-|-
11
3
|=-
11
3
=-
22
6

又∵|-

21
6
|=
21
6
,|-
22
6
|=
22
6

∴-(+3.5)>-|-

11
3
|.

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