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 65 by the denominator 4:
65 (numerator) ÷ 4 (denominator) = 16.25
As a result, you get 16.25 as your answer when you convert 11 21/4 (or 65/4) to a decimal.