﻿ Dividing Square Roots tutorial with examples, practice problems and a free worksheet with answer key

# Dividing Square Roots

How to divide square roots -- with examples

Vocabulary Refresher

Refresher on an important rule involving dividing square roots:

The rule explained below is a critical part of how we are going to divide square roots so make sure you take a second to brush up on this. (Or learn it for the first time;)

When you divide two square roots you can "put" both the numerator and denominator inside the same square root. Below is an elink 1xample of this rule using numbers.

As you can see the '23' and the '2' can be rewritten inside the same radical sign.

### Examples of Dividing Square Roots

##### Example 1

$\frac{ \sqrt{150 }}{ \sqrt 2}$

Step 1

Combine square roots under 1 radicand.

Step 2

Divide (if possible). Since 150 is divisible by 2, we can do this.

Step 3

##### Example 2
Step 1

Rewrite the expression by combining the rational andirrational numbers into two distinct quotients.

Step 2

Combine the square roots under 1 radicand.

Step 3

Divide the square roots and the rational numbers.

Step 4

### Practice Dividing Square Roots

##### Problem 1

This problem is like example 1.

Step 1

Combine square roots under 1 radicand.

Step 2

Divide (if possible). Since 200 is divisible by 10, we can do this.

Step 3
##### Problem 2

This problem is like example 1.

Step 1

Combine square roots under 1 radicand.

Step 2

Divide (if possible). Since 140 is divisible by 5, we can do this.

Step 3
##### Problem 3

This problem is like example 2.

Step 1

Rewrite the expression by combining the rational andirrational numbers into two distinct quotients.

Step 2

Combine the square roots under 1 radicand.

Step 3

Divide the square roots and the rational numbers.

Step 4
##### Problem 4

This problem is like example 2.

Step 1

Rewrite the expression by combining the rational and irrational numbers into two distinct quotients.

Step 2

Combine the square roots under 1 radicand.

Step 3

Divide the square roots and the rational numbers.

Step 4