What is 1 divided by square root of 21? (1/√21)

1 divided by square root of 21

Here we will show you how to calculate 1 divided by the square root of 21. In fact, we will show you two different ways of calculating 1 divided by √21. We start by displaying the problem we are solving in mathematical terms, as follows:

1 ÷ √21 =

		1
		√21

Method 1
To solve the problem 1 divided by the square root of 21 using this method, we first find the square root of 21, and then we divide 1 by the answer to the square root of 21.

		1
		√21

≈

		1
		4.5825757

		1
		4.5825757

≈ 0.2182179

Method 2
With this alternate method, we first move the radical from the denominator to the numerator by multiplying the numerator and denominator by √21 like this.

		1 × √21
		√21 × √21

≈

		4.5825757
		21

Then we divide the numerator by the denominator to once again get the answer to 1 divided by the square root of 21.

		4.5825757
		21

≈ 0.2182179

Number Divided by Square Root Calculator
Please enter a similar problem for us to solve for you.

1 divided by square root of 22
Here is the next problem on our list that we have explained and calculated.