问题 解答题
化简比.
5
6
7
8
1.8:2.41.2吨:750千克.
答案

(1)

5
6
7
8

=(

5
6
×24):(
7
8
:(
7
8
×24),

=20:21;

(2)1.8:2.4,

=(1.8×5):(2.4×5),

=9:12,

=3:4;

(3)1.2吨:750千克,

=1200千克:750千克,

=(1200÷150):(750÷150),

=8:5.

单项选择题
单项选择题