One method to convert 123/12 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 123 by the denominator 12:
123 (numerator) ÷ 12 (denominator) = 10.25
And there you go! We got 10.25 as the answer when you convert 9 15/12 (or 123/12) to a decimal.