document.write( "Question 279541: ernie and mike painted a fence together in \"a\" hours. it would take ernie \"b\" hours to paint the fence by himself. what fraction of the fence did ernie paint? what fraction of the fence did mike paint? \n" ); document.write( "

Algebra.Com's Answer #203208 by richwmiller(17219) $\"\"$ $\"About$

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a/b+a/m=1
\n" ); document.write( "ernie did a/b
\n" ); document.write( "mike did 1-a/b
\n" ); document.write( " \n" ); document.write( "

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