document.write( "Question 979209: In a fraction twice the numerator in 2 more than the denominator. If 3 is added to the numerator and to the denominator the new fraction is 2/3. Find original fraction. \n" ); document.write( "
Algebra.Com's Answer #600491 by subhash Sharma (1)![]() ![]() You can put this solution on YOUR website! Let x=the numerator and y= the denominator Now we are told that \n" ); document.write( "2x=y+2----------equation (1) \n" ); document.write( "and (x+3)/(y+3)=2/3 \n" ); document.write( " 3(x+3)=2(y+3) \n" ); document.write( " 3x+9=2y+6 \n" ); document.write( " 3x-2y=-3------------equation (2) \n" ); document.write( " Solve from eqn. (1) and (2) we get, \n" ); document.write( " 2x-y=2----------(1)×2 \n" ); document.write( " 3x-2y=-3--------(2)×1 \n" ); document.write( " Now eqn.(1)-(2) we get, \n" ); document.write( " 4x-2y=4 \n" ); document.write( " 3x-2y=-3 \n" ); document.write( " X=7 \n" ); document.write( " And from equation(1) y=12 \n" ); document.write( " Therefore, original fraction x/y=7/12. \n" ); document.write( " |