0.1:0.4 16:20 0.15:3 2/3:1/2 5.6:4.2 168:84 1:0.25
问题描述:
0.1:0.4 16:20 0.15:3 2/3:1/2 5.6:4.2 168:84 1:0.25
答
0.1:0.4 =1:4
16:20 =4:5
0.15:3 =1:20
2/3:1/2=4:3
5.6:4.2=4:3
168:84 =2:1
1:0.25 =4:1