Question

Can u please answer all three and in 20-30 minutes please or quicker if u can please I just not understanding the math they are giving me

Answer 1

18).  16:80 is the ratio but in simplest form is; 5:0

19).   36:54 is the ratio but in simplest form is; 2:3

20).   12:24 is the ratio but in simplest form is; 1:2

hope that helps:D