Approx 0.0000095
five hours and twenty minute is not necessarily a fraction. It is, for example, 320 minutes, which is an integer.
to make it a fraction, we need a denominator. Such as minutes in year/ minutes in decade?
1/12
1/12
7/12
5/12
3/4
Expressed as a decimal fraction, 2 hours 45 minutes is equal to 2.75 hours.
25/60, or 5/12
3/7
Five minutes is one twelfth (1/12) of an hour or .083 hours
1 and 3/4 hours.