# How do you simplify: square root of 1/3?

##### 1 Answer

Usually the final answer is written as

#### Explanation:

To get the final answer, you need to "rationalize the denominator" by multiplying by

It is **not** "mathematically illegal" to write this number as

1) It helps teachers check your answers more easily.

2) Rationalizing the denominator (or numerator, for that matter) is a useful skill that can help you solve problems in higher math. For instance, in calculus, it's a trick that can often help you solve some problems about "limits".