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 9938 by the denominator 84 (which you can enter in any calculator):
9938 (numerator) ÷ 84 (denominator) = 118.31
And finally, you get 118.31 as your answer when you convert 117 110/84 (or 9938/84) to a decimal.