One method to convert 9/4 to a decimal is by using the division method. Before we move ahead to the method, here is a quick recap on fractions: A fraction is a number representation that is broken down into two parts - the number on top is called the numerator, and the number on the bottom is called the denominator. To get a decimal using the division method, simply divide the numerator 9 by the denominator 4:
9 (numerator) ÷ 4 (denominator) = 2.25
And there you go! We got 2.25 as the answer when you convert 2 1/4 (or 9/4) to a decimal.