# HiSET: Math : Perform arithmetic operations

## Example Questions

### Example Question #1 : Perform Arithmetic Operations

Add these two expressions together:  and .

Explanation:

Step 1: Add the terms based on their similarities...

and  becomes .

and  becomes .

and  becomes

Step 2: Combine all the terms after "becomes" in step 1...

### Example Question #1 : Algebraic Concepts

Subtract  and .

Explanation:

Step 1: Subtract these terms by separating by exponents...

Step 2: Add all the simplified terms together...

### Example Question #1 : Algebraic Concepts

Explanation:

Step 1: Find the Least Common Denominator of these fraction. We will list out multiples of each denominator until we find a common number for all three fractions...

The smallest common denominator is .

Step 2: Since the denominator is , we will convert all denominators to .

Step 3: Add up all the values of x...

Step 4: The result from step  is the numerator and  is the denominator. We will put these together.