问题 解答题
化简比并求比值
1
3
4
:1.05
18:1.2.
答案

(1)1
3
4
:1.05,

=(1.75×20):(1.05×20),

=35:21,

=5:3;

1

3
4
:1.05,

=5:3,

=5÷3,

=

5
3

(2)18:1.2,

=(18×5):(1.2×5),

=90:6,

=15:1;

18:1.2,

=15:1,

=15÷1,

=15.

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