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 121 by the denominator 22:
121 (numerator) ÷ 22 (denominator) = 5.5
As a result, you get 5.5 as your answer when you convert 3 55/22 (or 121/22) to a decimal.