Other forms: numerators
In math, the top number in a fraction is called the numerator. The numerator is the number that will be divided by the bottom number, or denominator.
A common fraction looks like two numbers, one above the other, with a line between the numerator and denominator. One simple way to understand a fraction is to imagine a pizza. The denominator shows you how many equal pieces the pizza is divided into, and the numerator represents how many of those pieces you have. In Latin, numerator means "counter or numberer."