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 27618 by the denominator 873:
27618 (numerator) ÷ 873 (denominator) = 31.64
As a result, you get 31.64 as your answer when you convert 31 555/873 (or 27618/873) to a decimal.