# How do you add and subtract radicals like: #sqrt(6/3) -sqrt(9/3)#?

##### 1 Answer

Apr 1, 2015

The root operator is prior to addition. So we need to calculate each square root operation independently. We cannot combine

The precedence is: Exponents=Roots>Multiplication=Division>Addition=Subtraction

For further information: Order of Operations, Wikipedia

So the answer is