document.write( "Question 283311: Susan can do a certain job in 5 hours. Kim can do the same job in 3 hours. Working together, how many hours would they need to do the job? \n" ); document.write( "
Algebra.Com's Answer #205655 by richwmiller(17219)\"\" \"About 
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x/5+x/3=1
\n" ); document.write( "3x+5x=15
\n" ); document.write( "8x=15
\n" ); document.write( "x=15/8
\n" ); document.write( "x=1 7/8 hours
\n" ); document.write( "x/5=15/8/5=3/8 of the job
\n" ); document.write( "x/3=15/8/3=5/8 of the job
\n" ); document.write( "Sue does 3/8 and Kim does 5/8 of the job
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