# Expression Definition

An expression is a statement in Mathematics that has at least two terms connected with a particular **mathematical operator. **The terms can be **numbers or variables**. We can say that an expression has two main parts:

- Numbers/variables
- Mathematical Operation

**Note:**

You can read about **Variables** here.

**Table of Contents**

## General form of an expression

The general form of an expression is given below:

**Number/Variable, Mathematical Operation, Number/Variable**

### What type of Mathematical operation makes expression?

The four basic Mathematical operations can make an expression. Here are the name of those basic operations.

**Example 1:** 3x + 4.

**Example 2:** 4x – 3

**Example 3:** 4 × 5

**Example 4:** 133 ÷ 4

In the above examples, we have represented expressions having all four basic Mathematical operations. Keep in mind that an expression can have **more than two terms **as well as** multiple mathematical operator's** involvements.

### Types of Expressions?

There are three main types of expressions in Mathematics. Let us show you these types shortly here.

• **Numerical Expression:**

An expression that includes numbers only without the involvement of variables.

**For Example:**

65 + 89 is a numerical expression as it involves numbers only.

**• Algebraic Expression: **

An expression that includes numbers and variables is called an Algebraic Expression.

**Note:**

You can read about **Algebraic Expression** here.

**For Example:**

+ 7y is an Algebraic Expression as it involves two variables “x” and “y”.

• **Fractional Expression: **

An expression that includes fractions having numbers or variables.

**For Example:**

3x/7 + 17/8 is a fractional expression as it involves two fractions connected with a sign of Addition.

### FAQ's

**Are an expression and equation the same?**

No, an expression doesn’t involve a sign of equality while an equation involves it. Also, we can say that an expression can be a part of an equation.

**How to identify an expression in Mathematics?**

In Mathematics, wherever you will see different terms connected with any Mathematical operator, you can say that it is an expression.

**How many terms should an expression have?**

An expression must have a minimum of two terms while there is no limit over the maximum numbers.

**Can we solve an expression in Mathematics?**

Yes, we can solve an expression using the operators used in them by following Mathematical principles.

**How to simplify expressions in Mathematics?**

We can simplify an expression by solving the Mathematical operations. It means we can add, subtract, multiply, or divide as per the requirements of the expression for simplification.