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 71 by the denominator 2:
71 (numerator) ÷ 2 (denominator) = 35.5
As a result, you get 35.5 as your answer when you convert 25 21/2 (or 71/2) to a decimal.