Numerator may refer to: A numeral used to indicate a count, particularly of the equal parts in a fraction. A numerator's the number on top of the fraction. For example, in 3/4, 3's the numerator and 4's the denominator. A person who counts Sometimes the numerator's also referred to as the "nominator," a term more compatible with denominator, so the terms on the top and bottom of the fraction have similar names.… (More on Numerator)