Simplify the following ratio: 7:4:3 20:6:5 1:0.75 120:32 36:5:9 10 2:3:9:4:8:5:4 1.25:0.25

Simplify the following ratio: 7:4:3 20:6:5 1:0.75 120:32 36:5:9 10 2:3:9:4:8:5:4 1.25:0.25

There is no pen around. It's very simple. You can multiply the previous score by the reciprocal of the next one