Seven hours, fifteen minutes.
15 minutes is 1/4 hour or 0.25 hours.
You can write 3 hours and 15 minutes as 3:15. Alternatively, it can also be expressed in decimal form as 3.25 hours, since 15 minutes is a quarter of an hour.
You can write 7 hours and 15 minutes as 7:15. Alternatively, in decimal format, it can be expressed as 7.25 hours, where 15 minutes is converted to a fraction of an hour (15/60 = 0.25).
3.25 hours
Three hours and 15 minutes can be written as 3.25 hours or 3 1/4 hours.
2.25 hours.
5.25 hours
15 minutes is 1/4 hour or .25 hours.
Either 5.25 hours or 5:15.
4 and 1/4 hours
Oh, isn't that just a lovely question! To write 4 hours and 15 minutes, you simply write it as 4:15. It's like painting a happy little time portrait on your canvas of the day. Just remember, there are many ways to express time, and each one is as unique and beautiful as a little tree in a meadow.
1 hour + 75 minutes = 2 hours 15 minutes... That's 2.25 hours as a decimal.