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 115 by the denominator 21:
115 (numerator) ÷ 21 (denominator) = 5.48
As a result, you get 5.48 as your answer when you convert 4 31/21 (or 115/21) to a decimal.