题目内容

把下面的分数化成小数:
2
5
=
0.4
0.4
7
8
=
0.875
0.875
9
4
=
2.25
2.25
1
6
=
0.1
6
0.1
6
21
10
=
2.1
2.1
2
3
=
0.
6
0.
6
分析:分数化小数时,用分子除以分母即可.
解答:解:(1)
2
5
=2÷5=0.4;
(2)
7
8
=7÷8=0.875;
(3)
9
4
=9÷4=2.25;
(4)
1
6
=1÷6=0.1
6

(5)
21
10
=21÷10=2.1;
(6)
2
3
=2÷3=0.
6

故答案为:0.4,0.875,2.25,0.1
6
,2.1,.0.
6
点评:本题是考查分数化小数,属于基础知识,要掌握.
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