A fraction is written in terms of two parts: the number on top is called the numerator and the number on the bottom is called the denominator. We can use the division method to solve this question. To get a decimal, simply divide the numerator 111 by the denominator 9:
111 (numerator) ÷ 9 (denominator) = 12.33
As a result, you get 12.33 as your answer when you convert 3 84/9 (or 111/9) to a decimal.