document.write( "Question 18304: Please show me how to solve this. Thanks.\r
\n" ); document.write( "\n" ); document.write( "After painting a fence together for t hours, Johnson and Maggie have done fractional parts of the job equal to t/4 and t/5 respectfully. How much time T(in hours, minutes and seconds) is required to compeltely paint the fence assuming no breaks.
\n" ); document.write( "T = _ hours _ minutes _ seconds
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Algebra.Com's Answer #8760 by Earlsdon(6294)\"\" \"About 
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One approach is to find the hourly rate of Johnson and that of Maggie.\r
\n" ); document.write( "\n" ); document.write( "If t = number of hours, then, if t = 1 hour, Johnson can paint 1/4 of the fence in i hour and Maggie can paint 1/5 of the fence in 1 hour.
\n" ); document.write( "Together, they can paint (1/4 + 1/5) of the entire fence in 1 hour.\r
\n" ); document.write( "\n" ); document.write( "\"1%2F4+%2B+1%2F5+=+9%2F20\"\r
\n" ); document.write( "\n" ); document.write( "So, in 1 hour, they can paint 9/20 of the entire fence working together.\r
\n" ); document.write( "\n" ); document.write( "Therefore, it would take them 20/9 hours to paint the entire fence together.\r
\n" ); document.write( "\n" ); document.write( "20/9 hours = 2 2/9 hours.
\n" ); document.write( "2/9 hours = 13 1/3 minutes.
\n" ); document.write( "1/3 minute = 20 seconds.
\n" ); document.write( "20/9 hours = 2 hours 13 minutes 20 seconds.\r
\n" ); document.write( "\n" ); document.write( "T = 2 hours 13 minutes 20 seconds.
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