Rationalizing Denominators
When a denominator has a square root it will not appear that way in the answer choice on the SAT math section. Most of the time, numbers with a square root in the denominator will be rationalized so that they have a whole number as the denominator. The process to achieve this is quite simple.
To remove the square root in a denominator, simply solve the equation. A square root is just a number that is multiplied by itself.
TIP: Do not rationalize denominators until after looking at the answer choices available on the SAT math section. Occasionally the answers wil be given as a square root while other times they may use a decimal equivalent. Do not do any extra work until you know that you will need to do it as this can save you time to be able to answer more questions correctly and increase your overall math score on the SAT.