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先简化,再求比值.化简:1.5:2.114:3558:566千米:300米求比值:1.5:2.114:3558:566千米:300米.

题目详情
先简化,再求比值.
化简:1.5:2.1 14:35
5
8
5
6
6千米:300米
求比值:1.5:2.1 14:35
5
8
5
6
6千米:300米.
▼优质解答
答案和解析
(1)1.5:2.1,
=(1.5×10):(2.1×10),
=15:21,
=5:7;
1.5:2.1,
=5:7,
=5÷7,
=
5
7


(2)14:35,
=(14÷7):(35÷7),
=2:5;
14:35,
=2:5,
=2÷5,
=
2
5


(3)
5
8
5
6

=(
5
8
×24):(
5
6
×24),
=15:20,
=3:4;
5
8
5
6

=3:4,
=3÷4,
=
3
4


(4)6千米:300米,
=6000米:300米,
=20:1;
6千米:300米,
=20:1,
=20÷1,
=20.