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 35:
144 (numerator) ÷ 35 (denominator) = 4.11
As a result, you get 4.11 as your answer when you convert 3 39/35 (or 144/35) to a decimal.