问题 解答题
化简比.
(1)63:1.25
(2)
4
6
3
5

(3)0.32千米:560米.
答案

(1)63:1.25,

=(63×4):(1.25×4),

=252:5;

(2)

4
6
3
5

=(

4
6
×30):(
3
5
×30),

=20:18,

=10:9;

(3)0.32千米:560米,

=320米:560米,

=(320÷80):(560÷80),

=4:7.

填空题
多项选择题