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 138 by the denominator 15:
138 (numerator) ÷ 15 (denominator) = 9.2
As a result, you get 9.2 as your answer when you convert 6 48/15 (or 138/15) to a decimal.