document.write( "Question 1068148: The ratio of the numerator to the denominator of a fraction is three to five. If fifteen is subtracted from the numerator and added to the denominator, the new fraction reduces to one-third. Find the original fraction. \n" ); document.write( "
Algebra.Com's Answer #683338 by math_helper(2461)\"\" \"About 
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\"x%2Fy+=+3%2F5+\" (1)
\n" ); document.write( "\"+%28x-15%29%2F%28y%2B15%29+=+1%2F3+\" (2)\r
\n" ); document.write( "\n" ); document.write( "(1) —> \"+x+=+%283%2F5%29y+\" (1')
\n" ); document.write( "Substitute this into (2) so you'll have one equation with one unknown (y):\r
\n" ); document.write( "\n" ); document.write( " \"+%28%283%2F5%29y+-+15%29%2F%28y%2B15%29+=+1%2F3+\"
\n" ); document.write( " \"+%283%2F5%29y+-+15+=+%281%2F3%29%28y%2B15%29+\"
\n" ); document.write( "etc.
\n" ); document.write( "Solve for y then plug into (1), (1') (easiest), or (2) to get x.
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