One method to convert 105/25 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 105 by the denominator 25:
105 (numerator) ÷ 25 (denominator) = 4.2
And there you go! We got 4.2 as the answer when you convert 1 80/25 (or 105/25) to a decimal.