题目内容

计算下面各题(能简算的要简算)
1
3
+
1
4
)÷(1-
1
8

5
18
+
15
16
×
4
5
+
1
4

5
7
×
5
16
+
11
16
×
5
7

1
3
-
1
5
÷
2
7
×
3
8
(1)(
1
3
+
1
4
)÷(1-
1
8
),
=
7
12
÷
7
8

=
2
3


(2)
5
18
+
15
16
×
4
5
+
1
4

=
5
18
+
3
4
+
1
4

=
5
18
+1,
=1
5
18


(3)
5
7
×
5
16
+
11
16
×
5
7

=(
5
16
+
11
16
)×
5
7

=1×
5
7

=
5
7


(4)(
1
3
-
1
5
÷
2
7
×
3
8

=
2
15
÷
2
7
×
3
8

=
7
15
×
3
8

=
7
40
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