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 127 by the denominator 42:
127 (numerator) ÷ 42 (denominator) = 3.02
As a result, you get 3.02 as your answer when you convert 3 1/42 (or 127/42) to a decimal.