Respuesta :

Rohan2212
Ok 30min:120 min

= divided both by 30

~ gives you 1:4
H4SHIM
1.5 is the same as 90 minutes.

30 mins : 90 minutes

The highest common factor here is 30.

30 / 30 = 1

90 / 30 = 3

Therefore the solution to this is:

1:3

Hope this has helped you