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 99 by the denominator 9:
99 (numerator) ÷ 9 (denominator) = 11
As a result, you get 11 as your answer when you convert 1 90/9 (or 99/9) to a decimal.