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 123 by the denominator 20:
123 (numerator) ÷ 20 (denominator) = 6.15
As a result, you get 6.15 as your answer when you convert 6 3/20 (or 123/20) to a decimal.