7
8
-
15
32
÷
5
8
+
3
16
=
 

4
3
-
1
5
×
1
4
)÷
4
15
=
 

4
5
×
5
18
+
3
7
+
7
9
=
 

7
8
÷〔(
7
8
-
3
4
)×
4
5
〕=
 

6×(
2
15
+
1
12
)-
1
8
=
 

2-
5
9
÷
2
3
-
1
6
=
 

7
3
-(
3
5
÷
9
20
+
8
23
)=
 

〔2-(
8
5
+
1
3
)〕÷
4
15
=
 

1-(
5
8
÷
3
2
+
1
4
)=
 

5
7
÷
8
9
+
7
8
÷
7
5
-
5
7
=
 

(1-
1
3
÷
4
7
)×
3
10
=
 

3
5
-
3
5
×
5
9
)÷
4
9
=
 

5
6
-(
3
4
-
1
2
)〕÷
7
15
=
 

15
16
×〔1÷(
2
3
+
1
2
)〕=
 

21
26
×
13
7
+
1
2
)÷
5
9
=
 

17
24
÷5+
1
5
÷
24
7
+0.2=
 

4
7
÷〔(
5
6
-
4
5
)÷
7
16
〕=
 

〔4-(
3
4
-
3
8
)〕÷
1
8
=
 

8
15
÷〔
5
32
×(
9
10
+
1
6
)〕=
 

3-
5
18
×
27
40
-
13
16
=
 

2
21
÷〔(
3
4
-
2
3
)×
6
7
〕=
 
分析:根據(jù)題意,根據(jù)分?jǐn)?shù)四則混合運(yùn)算的計(jì)算即可.
解答:解:
7
8
-
15
32
÷
5
8
+
3
16

=
7
8
-
15
32
×
8
5
+
3
16

=
7
8
-
3
4
+
3
16

=
14
16
-
12
16
+
3
16

=
5
16

4
3
-
1
5
×
1
4
)÷
4
15

=(
4
3
-
1
20
)×
15
4

=
4
3
×
15
4
-
1
20
×
15
4

=5-
3
16

=4
13
16
;
4
5
×
5
18
+
3
7
+
7
9

=
2
9
+
3
7
+
7
9

=
2
9
+
7
9
+
3
7

=1+
3
7

=1
3
7
;
7
8
÷[(
7
8
-
3
4
)×
4
5
]
=
7
8
÷[(
7
8
-
6
8
)×
4
5
]
=
7
8
÷[
1
8
×
4
5
]
=
7
8
÷
1
10

=
7
8
×10

=
35
4

=8
3
4
;
6×(
2
15
+
1
12
)-
1
8

=
2
15
+
1
12
-
1
8

=
4
5
+
1
2
-
1
8

=
32
40
+
20
40
-
5
40

=
47
40

=1
7
40
;
2-
5
9
÷
2
3
-
1
6

=2-
5
9
×
3
2
-
1
6

=2-
5
6
-
1
6

=2-(
5
6
+
1
6

=2-1
=1;
7
3
-(
3
5
÷
9
20
+
8
23

=
7
3
-(
3
5
×
20
9
+
8
23

=
7
3
-(
4
3
+
8
23

=
7
3
-
4
3
-
8
23

=1-
8
23

=
15
23
;
[2-(
8
5
+
1
3
)]÷
4
15

=[2-(
24
15
+
5
15
)]÷
4
15

=[
30
15
-
29
15
4
15

=
1
15
÷
4
15

=
1
15
×
15
4

=
1
4
;
1-(
5
8
÷
3
2
+
1
4

=1-(
5
8
×
2
3
+
1
4

=1-(
5
12
+
3
12

=1-
8
12

=1-
2
3

=
1
3
;
5
7
÷
8
9
+
7
8
÷
7
5
-
5
7

=
5
7
×
9
8
+
7
8
×
5
7
-
5
7

=
5
7
×(
9
8
+
7
8
-1)
=
5
7
×1
=
5
7

(1-
1
3
÷
4
7
)×
3
10

=(1-
1
3
×
7
4
)×
3
10

=(1-
7
12
)×
3
10

=
5
12
×
3
10

=
1
8
;
3
5
-
3
5
×
5
9
)÷
4
9

=
3
5
×(1-
5
9
)×
9
4

=
3
5
×
4
9
×
9
4

=
3
5
;
[
5
6
-(
3
4
-
1
2
)]÷
7
15

=[
10
12
-(
9
12
-
6
12
)]÷
7
15

=[
10
12
-
9
12
+
6
12
7
15

=
7
12
×
15
7

=
5
4

=1
1
4
;
15
16
×[1÷(
2
3
+
1
2
)]
=
15
16
×[1÷(
4
6
+
3
6
)]
=
15
16
×[1÷
7
6
]
=
15
16
×1×
6
7

=
45
56

21
26
×
13
7
+
1
2
)÷
5
9

=(
21
26
×
13
7
+
1
2
)÷
5
9

=(
3
2
+
1
2
)×
9
5

=2×
9
5

=
18
5

=3
3
5
;
17
24
÷5+
1
5
÷
24
7
+0.2
=
17
24
×
1
5
+
1
5
×
7
24
+
1
5

=
1
5
×
17
24
+
7
24
+1

=
1
5
×2

=
2
5
;
4
7
÷[(
5
6
-
4
5
)÷
7
16
]
=
4
7
÷[(
25
30
-
24
30
)×
16
7
]
=
4
7
÷
8
105

=
4
7
×
105
8

=
15
2

=7
1
2
;
[4-(
3
4
-
3
8
)]÷
1
8

=[4-(
6
8
-
3
8
)]÷
1
8

=[4-
3
8
1
8

=[4-
3
8
]×8
=4×8-
3
8
×8

=32-3
=29;
8
15
÷[
5
32
×(
9
10
+
1
6
)]
=
8
15
÷[
5
32
×(
27
30
+
5
30
)]
=
8
15
÷[
5
32
×
32
30
]
=
8
15
÷
1
6

=
8
15
×6

=
16
5

=3
1
5

3-
5
18
×
27
40
-
13
16

=3-
3
16
-
13
16

=3-(
3
16
+
13
16

=3-1
=2;
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