题目内容

计算下列各题,能简算的要简算.
(1-
14
15
)×
4
9
÷
5
18
30×(
1
15
+
4
5
+
1
3
1
4
×
3
5
+
2
5
÷4
3
16
÷0.375×
4
5
(1)(1-
14
15
)×
4
9
÷
5
18

=
1
15
×
4
9
÷
5
18

=
1
15
×
4
9
×
18
5

=
1
15
×(
4
9
×
18
5
),
=
1
15
×
8
5

=
8
75


(2)30×(
1
15
+
4
5
+
1
3
),
=30×
1
15
+30×
4
5
+30×
1
3

=2+24+10,
=36;

(3)
1
4
×
3
5
+
2
5
÷4,
=
1
4
×
3
5
+
2
5
×
1
4

=
1
4
×(
3
5
+
2
5
),
=
1
4
×1,
=
1
4


(4)
3
16
÷0.375×
4
5

=
3
16
×
8
3
×
4
5

=
1
2
×
4
5

=
2
5
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