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 85 by the denominator 19:
85 (numerator) ÷ 19 (denominator) = 4.47
As a result, you get 4.47 as your answer when you convert 1 66/19 (or 85/19) to a decimal.