document.write( "Question 806963: The numerator of a fraction is 6 less than the denominator. If both of these are increased by 4, the resulting fraction will be 5/7. What is the original fraction \n" ); document.write( "
Algebra.Com's Answer #806069 by CubeyThePenguin(3113) You can put this solution on YOUR website! x/y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x = y - 6 \n" ); document.write( "(x + 4)/(y + 4) = 5/7\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Substitute into the second equation.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(y - 2)/(y + 4) = 5/7 \n" ); document.write( "7(y-2) = 5(y+4) \n" ); document.write( "7y - 14 = 5y + 20 \n" ); document.write( "2y = 34 \n" ); document.write( "y = 17\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The original fraction is x/y = 11/17. \n" ); document.write( " |