you would change hours to minutes. 1 hour=60 minutes
You can convert the 5 hours to minutes, and then subtract. Or if, as is more likely, you want the answer to be in hours and minutes, you do the following: you "borrow" one hour, and convert it into minutes. In other words, 5 hours is the same as 4 hours and 60 minutes. From there, you can easily subtract 15 minutes.
-36
60 minutes equal one hour.
There are 60 minutes in one hour. Therefore, 115 minutes is equal to 1 hour, 55 minutes, or 1.916 recurring (that is, 1.9166666...) hours.
60 minutes is equal to one hour.
.25 hours equal 15 minutes, 4.25 hours equal 255 minutes.
1 hour is equal to 60 minutes.
105 minutes is 1.75 hours or 1 hour 45 minutes @60 minutes per hour.
There are 60 minutes in an hour so 7 hours = 420 minutes
240 minutes is 4 hours (1 hour = 60 minutes)
There are 60 minutes in one hour. 420 minutes is equal to 7 hours, so 470 minutes is equal to 7 hours and 50 minutes.