One method to convert 129/11 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 11:
129 (numerator) ÷ 11 (denominator) = 11.73
And there you go! We got 11.73 as the answer when you convert 9 30/11 (or 129/11) to a decimal.