What is 1 divided by square root of 20? (1/√20)

1 divided by square root of 20

Here we will show you how to calculate 1 divided by the square root of 20. In fact, we will show you two different ways of calculating 1 divided by √20. We start by displaying the problem we are solving in mathematical terms, as follows:

1 ÷ √20 =

		1
		√20

Method 1
To solve the problem 1 divided by the square root of 20 using this method, we first find the square root of 20, and then we divide 1 by the answer to the square root of 20.

		1
		√20

≈

		1
		4.4721360

		1
		4.4721360

≈ 0.2236068

Method 2
With this alternate method, we first move the radical from the denominator to the numerator by multiplying the numerator and denominator by √20 like this.

		1 × √20
		√20 × √20

≈

		4.4721360
		20

Then we divide the numerator by the denominator to once again get the answer to 1 divided by the square root of 20.

		4.4721360
		20

≈ 0.2236068

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