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 85 by the denominator 31:
85 (numerator) ÷ 31 (denominator) = 2.74
As a result, you get 2.74 as your answer when you convert 1 54/31 (or 85/31) to a decimal.