Reduce the given ratio to its simplest form.
2 hours : 1 hour 20 minutes
3 : 2
2 hours : 1 hour 20 minutes
Converting all the quanitities to same unit, we have
2 hours = 120 minutes
1 hour 20 minutes = 60 + 20 = 80 minutes
Hence, 2 hours : 1 hour 20 minutes
= 120 minutes : 80 minutes
= 3 : 2