What is 1 divided by square root of 18? (1/√18)

1 divided by square root of 18

Here we will show you how to calculate 1 divided by the square root of 18. In fact, we will show you two different ways of calculating 1 divided by √18. We start by displaying the problem we are solving in mathematical terms, as follows:

1 ÷ √18 =

		1
		√18

Method 1
To solve the problem 1 divided by the square root of 18 using this method, we first find the square root of 18, and then we divide 1 by the answer to the square root of 18.

		1
		√18

≈

		1
		4.2426407

		1
		4.2426407

≈ 0.2357023

Method 2
With this alternate method, we first move the radical from the denominator to the numerator by multiplying the numerator and denominator by √18 like this.

		1 × √18
		√18 × √18

≈

		4.2426407
		18

Then we divide the numerator by the denominator to once again get the answer to 1 divided by the square root of 18.

		4.2426407
		18

≈ 0.2357023

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