题目内容

求下面各比的比值并化简:
14:21
9
11
3
22
6:
1
6
0.5:2.5.
(1)14:21,
=14÷21,
=
2
3

14:21,
=(14÷7):(21÷7),
=2:3.

(2)
9
11
3
22

=
9
11
÷
3
22

=6;
9
11
3
22

=(
9
11
×22):(
3
22
×22),
=18:3,
=6:1.

(3)6:
1
6

=6÷
1
6

=36;
6:
1
6

=(6×6):(
1
6
×6),
=36:1.

(4)0.5:2.5,
=0.5÷2.5,
=0.2;
0.5:2.5,
=(0.5×2):(2.5×2),
=1:5.
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