Quote:
Originally Posted by sibgakhan
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.