A fraction is usually split into two parts: the first part is the number on top, called the numerator; and the second part is the number on the bottom, called the denominator. These are both separated by a line called the “divisor line”. We can use the division method help to solve this question: to get a decimal, simply divide the numerator 4509 by the denominator 72 (which you can enter in any calculator):
4509 (numerator) ÷ 72 (denominator) = 62.63
And finally, you get 62.63 as your answer when you convert 62 45/72 (or 4509/72) to a decimal.