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 136 by the denominator 7:
136 (numerator) ÷ 7 (denominator) = 19.43
As a result, you get 19.43 as your answer when you convert 15 31/7 (or 136/7) to a decimal.