# Numerator (Mathematics Glossary)

# What Is the Numerator?

The numerator is the number written above the line of a fraction.The numerator of this fraction is 1.

(The number below the line is called the denominator. It is 4 in the fraction above.)

#### Dictionary Definition

The Oxford English Dictionary defines the numerator as "the number written above the line in a vulgar fraction, showing how many of the parts indicated by the denominator are taken."# Examples of Numerators

The numerator of the fraction^{2}/

_{3}(two-thirds) is 2. The numerator of the fraction

^{5}/

_{7}(five-sevenths) is 5

# What Does the Numerator Mean?

A fraction is a part of a whole number.The numerator tells you how many parts of the whole number there are.

(The denominator tells you how many equal parts the whole is divided into.)

# Visualizing the Numerator

Thinking of slices of a cake is a useful way of visualizing the numerator. A fraction is a part of a whole number. So it can be visualized as a number of slices of cake, which are parts of the whole cake.The

**numerator**tells you have many slices you have:

- A numerator of 1 represents 1 slice of cake.

- A numerator of 2 represents 2 slices of cake.

- A numerator of 3 represents 3 slices of cake.

- A numerator of 4 represents 4 slices of cake.

**denominator**tells you how many slices there are in the whole cake. There are 4 slices in the cake above, so the denominators of all the fractions shown is 4.)

##### Interactive Test

**show**

Here's a second test on the numerator.

Here's a third test on the numerator.

##### Note

# What Is a Fraction?

A fraction is a part of a whole number.Fractions consist of a numerator and a denominator.

There are three different types of fractions:

# Fractions with Larger Numerators Are Larger

If fractions have the same denominator, having a larger numerator makes the fraction larger.If you visualize the numerator as the number of slices of cake, then having a larger numerator means having more slices.

(If the denominator is the same, then the number of slices in a whole cake stays the same).