1. Közösség
2. Study Group
3. Rewrite the expression in the form y​n

I don't understand what the ^ symbol means and how you got to 9/12 + 4/12   i understand 9/12 + 4/12? equalling y^(13/12) but I'm just conduced how you got to the previous  9/12 + 4/12?   There was...