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正确、合理的计算42÷(76×914)914×6+514×648×(18+16)1112-13×1457÷3-121.

题目详情
正确、合理的计算
42÷(
7
6
×
9
14
)    
9
14
×6+
5
14
×6  
48×(
1
8
+
1
6

11
12
-
1
3
×
1
4
      
5
7
÷3-
1
21
▼优质解答
答案和解析
(1)42÷(
7
6
×
9
14

=42÷
3
4

=56;

(2)
9
14
×6+
5
14
×6
=(
9
14
+
5
14
)×6
=1×6
=6;

(3)48×(
1
8
+
1
6

=48×
1
8
+48×
1
6

=6+8
=14;

(4)
11
12
-
1
3
×
1
4

=
11
12
-
1
12

=
5
6


(5)
5
7
÷3-
1
21

=
5
21
-
1
21

=
4
21