One method to convert 51/8 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 51 by the denominator 8:
51 (numerator) ÷ 8 (denominator) = 6.38
And there you go! We got 6.38 as the answer when you convert 1 43/8 (or 51/8) to a decimal.