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 139 by the denominator 8:
139 (numerator) ÷ 8 (denominator) = 17.38
As a result, you get 17.38 as your answer when you convert 7 83/8 (or 139/8) to a decimal.