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 144 by the denominator 2:
144 (numerator) ÷ 2 (denominator) = 72
As a result, you get 72 as your answer when you convert 57 30/2 (or 144/2) to a decimal.