Respuesta :

18:27 simplified is 2:3 (divide 9 from 18 & 27)
so 
16:x = 2:3

16/2 = 8

x/8 = 3

x/8(8) = 3(8)

x = 24

24 is your answer

hope this helps
It’s 16:25 because 18 subtract 2 will be 16 and 27 subtract 2 will be 25 so it’s 16:25