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 129 by the denominator 48:
129 (numerator) ÷ 48 (denominator) = 2.69
As a result, you get 2.69 as your answer when you convert 1 81/48 (or 129/48) to a decimal.