题目内容

直接写出得数.
1
2
÷6
=
15÷
5
7
=
7
12
÷
7
4
=
7
6
×
7
15
=
0.33=
1
3
×
9
4
=
2
3
×36
=
4
5
÷
7
15
=
1-
2
5
=
1
6
-
1
7
=
2
5
÷6
=
2
7
÷
1
3
=
分析:分数乘法运算直接约分求解;分数除法根据除以一个数等于乘这个数的倒数计算;0.33=0.3×0.3×0.3,由此求解.
解答:
解:
1
2
÷6
=
1
12
15÷
5
7
=21,
7
12
÷
7
4
=
1
3
7
6
×
7
15
=
49
90
0.33=0.027,
1
3
×
9
4
=
3
4
2
3
×36
=24,
4
5
÷
7
15
=
12
7
1-
2
5
=
3
5
1
6
-
1
7
=
1
42
2
5
÷6
=
1
15
2
7
÷
1
3
=
6
7
点评:本题主要考查了基本的分数乘除法计算,注意把结果化成最简分数.
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