9 plus 3 over x divided by x over 4 plus 1 over 12 equals?

36/x

Step-by-step explanation:

(9+3/x) / { (x/4) + (1/12) }

{ (x/4) + (1/12) } = (3x+1) / 12

(9+3/x) = (9x+3) / x

(9+3/x) / (3x+1) / 12

(9x+3) / x / (3x+1) / 12

((9x+3) / x). (12 / (3x+1))

12 (9x+3) / (x (3x+1)

108x+36 / 3x² + x

36 (3x+1) / (x (3x+1)

3x+1 cancels each other

36/x