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 398 by the denominator 505:
398 (numerator) ÷ 505 (denominator) = 0.79
As a result, you get 0.79 as your answer when you convert 398/505 to a decimal.