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January 30, 2015

January 30, 2015

Posted by **patel** on Friday, October 21, 2011 at 8:35am.

- math -
**Anonymous**, Friday, October 21, 2011 at 10:18am1 / 3.2 - 1 / 4.2 =

10 / 32 - 10 / 42 =

( 10 * 42 - 10 * 32 ) / ( 32 * 42 ) =

( 420 - 320 ) / 1344 = 100 / 1344 =

( 2 * 50 ) / ( 2 * 672 ) = 50 /672

1 / ( 50 / 672 ) = 672 / 50 =

13.44 h =

13 h 26 m 24 s

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