2.7 hrs x 60 (for minutes) = amount of minutes
amount of minutes x 60 (for seconds) = amount of seconds.
IN this case
2.7 x 60 = 162 minutes
162 x 60 = 9720 seconds.
so the two rations are 1:60 or (hr: min) then 1:60 or (min: seconds)
hope this helps :D
