2.5,0.5,2,0.4组成八个比例

问题描述:

2.5,0.5,2,0.4组成八个比例

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