One method to convert 139/36 to a decimal is by using the division method. Before we move ahead to the method, here is a quick recap on fractions: A fraction is a number representation that is broken down into two parts - the number on top is called the numerator, and the number on the bottom is called the denominator. To get a decimal using the division method, simply divide the numerator 139 by the denominator 36:
139 (numerator) ÷ 36 (denominator) = 3.86
And there you go! We got 3.86 as the answer when you convert 3 31/36 (or 139/36) to a decimal.