题目内容
把下列各比化成最简整数比.
|
0.2:0.25 | 35:40 | 0.5小时:40分钟. |
(1)
:
,
=(
×8):(
×8),
=6:3,
=2:1;
(2)0.2:0.25,
=(0.2×20):(0.25×20),
=4:5;
(3)35:40,
=(35÷5):(40÷5),
=7:8;
(4)0.5小时:40分钟,
=30分钟:40分钟,
=(30÷10):(40÷10),
=3:4.
3 |
4 |
3 |
8 |
=(
3 |
4 |
3 |
8 |
=6:3,
=2:1;
(2)0.2:0.25,
=(0.2×20):(0.25×20),
=4:5;
(3)35:40,
=(35÷5):(40÷5),
=7:8;
(4)0.5小时:40分钟,
=30分钟:40分钟,
=(30÷10):(40÷10),
=3:4.
练习册系列答案
相关题目
把下列各比化成最简整数比.
: | 0.2:0.25 | 35:40 | 0.5小时:40分钟. |