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When we add 1 to the numerator of a fraction and simplify it we get 2/3.when add 1 to the denominator and simplify it we get 1/2.which is the fraction? |
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Answer» let the fraction = x/ y given , ====> (x + 1) y = 2 / 3 ====> 3x + 3 = 2y ====> 3x - 2y = -3 -------------(1)
====> x / (1+ y ) = 1/2 ====> 2X = 1 + y ====> 2 x - y = 1 --------------(2) 3x - 2y = -3 -------------(1) 2x - y = 1 --------------(2) ----–-------------------------------------------- (2)×2 => 4x - 2y = 2 ---------------(3)
3x - 2y = -3 -------------(1) 4x - 2y = 2 --------------(3) ----–-------------------------------------------- (1) + (3) => 7x = 1 x = 1 / 7 substituting the value of x in (2) ===> 2 ( 1/7) - y = 1 ===> 2/ 7 - 1 = y y = -5 / 7 Value of x = 1/7value of y = -5/7 |
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