document.write( "Question 887113: if jon can paint a fence in 3 hours and karen can paint it in 6 hours , find how long it takes them to paint it together. \n" ); document.write( "
Algebra.Com's Answer #536362 by JulietG(1812)\"\" \"About 
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3 + 6 = 9 for two fences, or 4.5 hours for 1 fence
\n" ); document.write( "If they're both working together to paint the same fence, divide by 2.
\n" ); document.write( "4.5 / 2 = 2.25 hours (or 2 hours 15 minutes)
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