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 131 by the denominator 31:
131 (numerator) ÷ 31 (denominator) = 4.23
As a result, you get 4.23 as your answer when you convert 3 38/31 (or 131/31) to a decimal.