问题 解答题
计算下面各题,能简算的要简算.
1
6
÷
4
3
+
5
6
÷
4
3

3
4
÷
7
8
÷
15
14

1
2
+
1
3
+
1
6
)÷
1
12

9
2
÷[
6
5
×(
1
2
+
3
4
)].
答案

(1)

1
6
÷
4
3
+
5
6
÷
4
3

=

1
6
×
3
4
+
5
6
×
3
4

=(

1
6
+
5
6
)×
3
4

=1×

3
4

=

3
4

(2)

3
4
÷
7
8
÷
15
14

=

6
7
÷
15
14

=

4
5

(3)(

1
2
+
1
3
+
1
6
)÷
1
12

=(

1
2
+
1
3
+
1
6
)×12,

=

1
2
×12+
1
3
×12+
1
6
×12,

=6+4+2,

=10+2,

=12;

(4)

9
2
÷[
6
5
×(
1
2
+
3
4
)],

=

9
2
÷[
6
5
×
5
4
],

=

9
2
÷
3
2

=3.

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