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 103 by the denominator 8:
103 (numerator) ÷ 8 (denominator) = 12.88
As a result, you get 12.88 as your answer when you convert 9 31/8 (or 103/8) to a decimal.