The numerator of a fraction is the number or expression "above" the division bar.

In the fraction (x+1)/(y+2), the expression (x+1) is the numerator.

The numerator of a fraction can itself be a fraction. (1/2)/3 has a numerator of (1/2). The numerator of the fraction 1/2 is 1.

In the fraction (x+1)/(y+2), the expression (x+1) is the numerator.

The numerator of a fraction can itself be a fraction. (1/2)/3 has a numerator of (1/2). The numerator of the fraction 1/2 is 1.