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 144 by the denominator 7:
144 (numerator) ÷ 7 (denominator) = 20.57
As a result, you get 20.57 as your answer when you convert 15 39/7 (or 144/7) to a decimal.