2.25 hours.
Three hours and 15 minutes can be written as 3.25 hours or 3 1/4 hours.
3.416666 repeating hours
It is 5 hours and 6 minutes.
0 hours
600 minutes = 10 hours
2.25 hours.
4 and 1/4 hours
3 and 3/4 hours.
1 hour = 60 minutes
Three hours and 15 minutes can be written as 3.25 hours or 3 1/4 hours.
3.416666 repeating hours
It is 5 hours and 6 minutes.
It is: 3 and 1/2 hours
0 hours
3 hours 30 minutes = 3.5 hours
Seven hours, fifteen minutes.