the denominator of a fraction is 15 greater than the numerator . if the numerator and the denominator are increased by 3 , the resulting fraction is equal to 3 â  „ 4 . what is the value of the original fraction ?
"let the numerator be x . then the denominator is x + 15 . x + 3 / x + 18 = 3 / 4 . 4 x + 12 = 3 x + 54 . x = 42 . the original fraction is 42 / 57 . the answer is e ."
divide(divide(subtract(multiply(3, add(3, 15)), 4), subtract(4, 3)), add(divide(subtract(multiply(3, add(3, 15)), 4), subtract(4, 3)), 15))