问题 解答题
计算下面各题.
1
3
×
3
7
+
5
6
÷
5
12
(
11
12
-
1
4
)×(1-
2
3
)
3
4
×(
2
3
-
2
5
4
11
4
5
÷
7
4
-
4
5
×
3
7
答案

(1)

1
3
×
3
7
+
5
6
÷
5
12

=

1
7
+
5
6
×
12
5

=

1
7
+2

=2

1
7

(2)(

11
12
-
1
4
)×(1-
2
3

=

2
3
×
1
3

=

2
9

(3)

3
4
×(
2
3
-
2
5
)÷
4
11

=

3
4
×
4
15
×
11
4

=

11
20

(4)

4
5
÷
7
4
-
4
5
×
3
7

=

4
5
×
4
7
-
4
5
×
3
7

=

4
5
×(
4
7
-
3
7

=

4
5
×
1
7

=

4
35

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