Write down the problem. You might, for instance, have the following example: 5/√25.
Extract the square root from the denominator (bottom of the fraction) if the number is a perfect square. That means a whole number times itself equals the radicand. In this example, you would extract 5 because 5 times 5 equals 25.
Divide the numerator (top number) by the denominator. In this example, you would divide 5 by 5 to get 1 as your answer.
Multiply the numerator and denominator by the square root in the denominator if the number isn't a perfect square or if the radicand is a variable (a letter that represents a number). For example, if you have 2/√x, you would multiply the top and bottom of the fraction by √x. This would give you 2√x/x. A numerical example is as follows: 6/√5. Multiply the top and bottom by √5 to get 6√5/5. You can further simplify this by calculating the square root of 5 (2.236). Then you would multiply this value times 6 to get 14.416 and then divide by 5 to get 2.6832.