3 hours 30 minutes = 3.5 hours
2.5
It is 1.5 hours
First you divide by 60 to find the hours. In this case, you do 1800/60 and get 30. There is no decimal part or remainder and so there will be no minutes. Therefore, in 1,800 minutes, there is exactly 30 hours.
To convert the decimal part of a hour to minutes multiply by 60. So 13.5 hours = 13 h 30 minutes.
5.5 hours. (30 minutes is half an hour, expressed as 0.5hrs, or every 0.1hrs is 6.0min.)
3 hours 30 minutes = 3.5 hours
2.5
It is 1.5 hours
Everything before the decimal is hours. Everything behind multiplies with 60. 3 hours and (0.5x60=30) 30 minutes.
30 minutes is half an hour.
1.50
First you divide by 60 to find the hours. In this case, you do 1800/60 and get 30. There is no decimal part or remainder and so there will be no minutes. Therefore, in 1,800 minutes, there is exactly 30 hours.
To convert the decimal part of a hour to minutes multiply by 60. So 13.5 hours = 13 h 30 minutes.
1 to 20
Take just the decimal, and multiply it by 60. So if you have 3.5 hours, you do 0.5 x 60 to get 30 minutes. If you have 6.48 hours, you do 0.48 x 60 to get 28.8 minutes, for which you can do the same thing with the decimal to get seconds (0.8 x 60 = 48 seconds)
3 hours and 30 minutes = 7/2 in improper fraction1 hour = 60 minutes30 minutes = 30 minutes * 1 hour/60 minutes =30/60 = 1/2 hour3 hours and 30 minutes:= 3 hours + 1/2 hour= 3 1/2 hours= [(2 * 3)+1]/2= [6+1]/2= 7/2