问题 解答题
计算
(
4
5
-
1
4
÷
3
8
5
6
5
6
÷[(
2
3
+
3
4
3
34
]
答案

(1)(

4
5
-
1
4
÷
3
8
)×
5
6

=(

4
5
-
1
4
×
8
3
)×
5
6

=(

12
15
-
10
15
)×
5
6

=

2
15
×
5
6

=

1
9

(2)

5
6
÷[(
2
3
+
3
4
)×
3
34
],

=

5
6
÷[
17
12
×
3
34
],

=

5
6
÷
1
8

=

5
6
×8,

=6

2
3

解答题
单项选择题