问题 解答题

求下列各比的比值

63:21;12:16;7:5; 2:0.5;2.4:0.6;4:5.

答案

63:21

=63÷21

=3;

12:16

=12÷16

=0.75;

7:5

=7÷5

=1.4;

2:0.5

=2÷0.5

=4;

2.4:0.6

=2.4÷0.6

=4;

4:5

=4÷5

=0.8.

单项选择题
单项选择题