We have
.
First let us factor the 2 to obtain,

We can now see clearly that the expression inside the parentheses is a difference of two squares.
We now write the 4 as 2². So that we obtain the expression,

Recall that

Hence our expression becomes,

Therefore, when factored completely,

LCD would be 18
8/9 = 16/18
2/3 = 12/18
1/9 = 2/18
I've attached the graphs to this answer. I hope they help.
Answer:
4/10
Step-by-step explanation: