Writing Hours and Minutes in Decimal FormDate: 11/05/2004 at 16:24:44 From: Shendora Subject: converting hours and minutes into fractions of an hour Below is the timesheet for me. Hours may be entered in hundredths, using a decimal point. Examples: 6 hours = 6.0 or 6 6 hours, 15 minutes = 6.25 6 hours, 30 minutes = 6.5 6 hours, 52 minutes = 6.87 I don't know what the formula is to calculate let's say 6 hours and 7 minutes. I tried to divide the hours up into minutes divided by the equivalent answer. Date: 11/07/2004 at 00:20:10 From: Doctor Ian Subject: Re: converting hours and minutes into fractions of an hour Hi Shendora, Let's look at the ones you know again: >6 hours = 6.0 or 6 >6 hours, 15 minutes = 6.25 = 6 1/4 = 6 15/60 >6 hours, 30 minutes = 6.5 = 6 1/2 = 6 30/60 >6 hours, 52 minutes = 6.87 = 6 52/60 That is, a minute is just 1/60 of an hour. So 6 hours and 7 minutes is 6 7/60 hours. To convert to a decimal, divide the numerator by the denominator: _ 0.1 1 6 ___________ 60 ) 7.0 0 0 0 6 0 --- 1 0 0 6 0 ----- 4 0 0 3 6 0 ----- 4 0 0 Does this make sense? - Doctor Ian, The Math Forum http://mathforum.org/dr.math/ Date: 11/08/2004 at 09:35:43 From: Shendora Subject: Thank you (converting hours and minutes into fractions of an hour) Thank you sooo much!!!! I was going about it all wrong. I had the concept right but somehow or another it got all twisted. You made it look totally easy! |
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