document.write( "Question 860845: Marge could clean the house in 5 hours.
\n" ); document.write( "Lisa could clean it in 3 hours.
\n" ); document.write( "How long will it take the both of them to clean the house?
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Algebra.Com's Answer #518655 by ben720(159)\"\" \"About 
You can put this solution on YOUR website!
Marge's rate is 1 job/5 hours
\n" ); document.write( "Lisa's rate is 1 job/ 3 hours
\n" ); document.write( "Together their rate is 1/5+1/3
\n" ); document.write( "\"1%2F5%2B1%2F3\"
\n" ); document.write( "Find the least common denominator, which is 15
\n" ); document.write( "\"3%2F15%2B5%2F15\"
\n" ); document.write( "\"8%2F15\"
\n" ); document.write( "Together, it will take them \"8%2F15\" of an hour.
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