问题 解答题
计算,能简算的要简算.
(1)6÷(0.4÷16)
(2)(
1
9
-
1
12
)×4×9

(3)
11
12
+
5
8
-(
3
8
-
1
12
)
答案

(1)6÷(0.4÷16),

=6÷0.025,

=240;

(2)(

1
9
-
1
12
)×4×9,

=

1
9
×4×9-
1
12
×4×9,

=4-3,

=1;

(3)

11
12
+
5
8
-(
3
8
-
1
12
),

=

11
12
+
5
8
-
3
8
+
1
12

=(

11
12
+
1
12
)+(
5
8
-
3
8
),

=1+

1
4

=1

1
4

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