One method to convert 90/5 to a decimal is by using the division method. Before we move ahead to the method, here is a quick recap on fractions: A fraction is a number representation that is broken down into two parts - the number on top is called the numerator, and the number on the bottom is called the denominator. To get a decimal using the division method, simply divide the numerator 90 by the denominator 5:
90 (numerator) ÷ 5 (denominator) = 18
And there you go! We got 18 as the answer when you convert 1 85/5 (or 90/5) to a decimal.