# Denominator Definition

In Mathematics, a **denominator** is a **number** that is written **below** the **bar** of a **fraction**. It means the number that is written in the **lower part** of the **fraction** is called the **denominator**.

**Table of Contents**

- Other terms related to the fraction
- What is the other name of a denominator in Mathematics?
- What is the importance of the denominator?
- Fun Facts about Denominator
- FAQ's

**Note:**

Read about fraction here.

For example, **9** is the denominator in **5/9**. In simple words, we can say that it is the number in a fraction that will **divide** the other **number**.

## Other terms related to the fraction

**Numerator**: It is the**upper part**of the**fraction**. The**number**written above the bar in the**fraction**is called**Numerator**. In the above example, 5 is the numerator.**Fractional Bar**: It is the**division sign**written in a fraction. We can say that it is a**bar**written between the**numerator**and the**denominator**.

**Note:**

Read about Numerator and **Fractional Bar** here.

### What is the other name of a denominator in Mathematics?

As we have mentioned, Denominator **divides** the other term of the **fraction**. It is also called **Divisor** due to this property. The other term (Numerator) is called the **dividend** in the fraction.

**Note:**

Read about **Divisor** and **Dividend** here.

### What is the importance of the denominator?

In Mathematics, the denominator of a fraction has great importance. Let us enlist a few uses of this part of a fraction for better understanding.

- Denominators are used to find the LCM of the fractions.
- It helps in
**categorizing**fractions depending on the nature of the denominator. - It helps in understanding whether a number is a
**Rational Number**or not.

**Note:**

You can read about **LCM** and Rational Number here.

### Fun Facts about Denominator

- A denominator can
**never**be a**decimal**. - The denominator of a fraction can
**never**be**"0"**. - The denominator will
**always**be a**whole number**. - The denominator shows the
**total number**of**parts**in which a shape is divided.

**Note:**

Read about **Decimal** and **Whole Number** here.

### FAQ's

**What does denominator mean in Math?**

Denominator means the lower part of a fraction in Mathematics.

**How do you explain the numerator and denominator?**

The numerator is the number that is going to be divided while the denominator is the number that will divide the numerator.

**What can we do using the denominator of fractions?**

With the help of denominators, we can find LCM, specify the names of the fraction, and perform various mathematical operations.

**Are fractions and denominators same?**

No, the denominator is a specific part of a fraction.

**What does the denominator show?**

The denominator shows how many parts a specific shape has. It also shows what kind of fractions is with which you are dealing.