the denominator of a fraction is 7 greater than the numerator . if the numerator and the denominator are increased by 4 , the resulting fraction is equal to 5 â  „ 6 . what is the value of the original fraction ?
"let the numerator be x . then the denominator is x + 7 . x + 4 / x + 11 = 5 / 6 . 6 x + 24 = 5 x + 55 . x = 31 . the original fraction is 31 / 38 . the answer is c ."
divide(divide(subtract(multiply(5, add(4, 7)), 6), subtract(6, 5)), add(divide(subtract(multiply(5, add(4, 7)), 6), subtract(6, 5)), 7))