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 6:
121 (numerator) ÷ 6 (denominator) = 20.17
As a result, you get 20.17 as your answer when you convert 3 103/6 (or 121/6) to a decimal.