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Old Sunday, November 07, 2010
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Ayesha Mahmood Ayesha Mahmood is offline
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Quote:
Originally Posted by sibgakhan View Post
how we can convert fraction part of a question into hours and min?
i mean 5 5/7 and 10 2/70 comtains how many hours and min and what the formula??
you can't convert fractions to minutes or hours. Only units are inter converted.


suppose you have to convert 5 5/7 seconds to minutes and hours then you may proceed as follows:

1 min = 60 sec
=>60 sec = 1 min
=>1 sec = 1/60 min
=>5 5/7 sec= 5 5/7 * 1/60 min = 40/7 *1/60 min = 2/21 min




1 hour = 60 min = 60 * 60 sec = 3600 sec
=>3600 sec = 1 hour
=>1 sec = 1/3600 hr
=>5 5/7 sec = 5 5/7 * 1/3600 hr = 40/7 * 1/3600 hr = 1/630 hr



and if 5 5/7 is not in sec but days then it will be converted to min and hours as follows:

1 day = 24 hrs
=>5 5/7 days = 5 5/7 * 24 hrs = 40/7 * 24 hrs = 137 1/7 hrs


also

1 day = 24 hrs = 24 * 60 min = 1440 min
=> 5 5/7 days = 40/7 * 1440 min = 8228 4/7 min.
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sibgakhan (Sunday, November 07, 2010)