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 145 by the denominator 39:
145 (numerator) ÷ 39 (denominator) = 3.72
As a result, you get 3.72 as your answer when you convert 3 28/39 (or 145/39) to a decimal.