One method to convert 42/17 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 42 by the denominator 17:
42 (numerator) ÷ 17 (denominator) = 2.47
And there you go! We got 2.47 as the answer when you convert 1 25/17 (or 42/17) to a decimal.