问题 解答题
计算:
(1)
16
3
÷
4
5
-
1
7
×
7
8

(2)
5
7
×0.2+
9
14
÷3
答案

(1)

16
3
÷
4
5
-
1
7
×
7
8

=

16
3
×
5
4
-
1
7
×
7
8

=

20
3
-
1
8

=

160
24
-
3
24

=

157
24

(2)

5
7
×0.2+
9
14
÷3,

=

5
7
×
1
5
+
9
14
×
1
3

=

1
7
+
3
14

=

5
14

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