document.write( "Question 739476: The value of a fraction is 2/3. If the numerator is increased by 14 and the denominator is decreased by 9 the value of the resulting fraction will be the reciprocal of the value of the original fraction. What is the original fraction? \n" ); document.write( "
Algebra.Com's Answer #451129 by josgarithmetic(39620)\"\" \"About 
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Let numerator be n
\n" ); document.write( "Let denominator be d.
\n" ); document.write( "\"n%2Fd+=+2%2F3\".\r
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\n" ); document.write( "\n" ); document.write( "The longer part of the description gives \"%28n%2B14%29%2F%28d-9%29=d%2Fn\".\r
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\n" ); document.write( "\n" ); document.write( "Working with the longer equation,\"+n%28n%2B14%29=d%28d-9%29\"
\n" ); document.write( "\"n%5E2%2B14n=d%5E2-9d\".\r
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\n" ); document.write( "\n" ); document.write( "Using the 2/3 equation, \"n=2d%2F3\", so try substituting:
\n" ); document.write( "\"d%5E2-9d=4d%5E2%2F9%2B14%2A2d%2F3\"
\n" ); document.write( "Multiply both sides by 9
\n" ); document.write( "\"9d%5E2-81d=4d%5E2%2B84d\"\r
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\n" ); document.write( "\n" ); document.write( "\"5d%5E2-165d=0\"
\n" ); document.write( "\"d%5E2-33d=0\"
\n" ); document.write( "\"d%28d-33%29=0\"
\n" ); document.write( "... \"highlight%28d=33%29\"
\n" ); document.write( "meaning \"highlight%28n=22%29\".
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