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 128 by the denominator 7:
128 (numerator) ÷ 7 (denominator) = 18.29
As a result, you get 18.29 as your answer when you convert 8 72/7 (or 128/7) to a decimal.