One method to convert 129/27 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 129 by the denominator 27:
129 (numerator) ÷ 27 (denominator) = 4.78
And there you go! We got 4.78 as the answer when you convert 3 48/27 (or 129/27) to a decimal.