题目内容

计算.
8
15
=4×
(    )
(    )
=
 

12
25
÷
24
35
=
12
25
×
(    )
(    )
=
 
21÷
7
9
=
18÷
6
7
=
7
9
÷
1
6
=
7
9
÷6=
15÷
5
6
=
14
25
÷
4
5
=
考点:分数除法
专题:运算顺序及法则
分析:此题属于分数的除法,把除法变为乘法,能约分的要约分.
解答: 解:(1)4÷
8
15
=4×
15
8
=
15
2


(2)
12
25
÷
24
35
=
12
25
×
35
24
=
7
10


(3)21÷
7
9
=21×
9
7
=27;

(4)18÷
6
7
=18×
7
6
=21;

(5)
7
9
÷
1
6
=
7
9
×6=
14
3


(6)
7
9
÷6=
7
9
×
1
6
=
7
54


(7)15÷
5
6
=15×
6
5
=18;

(8)
14
25
÷
4
5
=
14
25
×
5
4
=
7
10

故答案为:
15
8
15
2
35
24
7
10
点评:此题考查了分数除法的计算,除以一个数等于乘这个数的倒数,能约分的要约分.
练习册系列答案
相关题目

违法和不良信息举报电话:027-86699610 举报邮箱:58377363@163.com

精英家教网