I did the last one for you. Now it's your turn.
I'll be glad to check your answer.
n+2/3=1/9
6 answers
how do you find the common denominator
are you there?
Yes. I'm here. I'll post an answer in a couple of minutes.
Go to Mathisfun . com and search in the search box common denominator, it explains everything. Its a simple version site, so it should be easy for you to understand.
http://www.mathsisfun.com/numbers/common-denominator.html