Question

2.5,0.5,2,0.4组成八个比例

Answer 1

2.5:0.5=2:0.4

2.5:2=0.5:0.4

0.4:0.5=2:2.5

0.4:2=0.5:2.5

0.5:2.5=0.4:2

0.5:0.4=2.5:0.2

2:2.5=0.4:0.5

2:0.4=2.5:0.5