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 86 by the denominator 2:
86 (numerator) ÷ 2 (denominator) = 43
As a result, you get 43 as your answer when you convert 21 44/2 (or 86/2) to a decimal.