It is 0.2 hours.
1.2 hours
It is: 1/12 of an hour or 0.08'3' recurring '3' as a decimal
Three hours and 12 minutes is 3.2 hours. 12 minutes is one fifth of an hour (60/12 = 5) and one fifth is 0.2.
As a fraction of an hour it is: 35/60 or 7/12 in its simplest form
It is: 5/60 or 1/12 of an hour which as a decimal is 0.08'3' recurring '3'
It is: 12/60 or 1/5 in its simplest form
1 and 5/60 or 1 and 1/12 or 1.08333 in decimal form
5 minutes is 1/12 of an hour [0.083333...], rounds to 0.1 [one decimal rounding], so it is 2.1 hours, rounded to one decimal place.
12 minutes/ 1 hour = 12 minutes/60 minutes = 12/60 = 1/5
You need 5 of 12 minutes to make an hour.
1 hour = 60 minutes 1/12 hour = 60/12 minutes = 5 minutes.
1/12 hour = 5 minutes