# What is 7 over the square root of 27?

##### 1 Answer

Jul 24, 2015

#### Explanation:

Start by writing your expression, which features *numerator* and *denominator*.

Now, the important thing to realize here is that you can write

This means that the denominator becomes

The expression is now

Next, you have to *rationalize the denominator*, which you can do by multiplying the numerator and the denominator by