You can put this solution on YOUR website! First of all, I'm not sure what you want to do with this. Secondly, I'm not sure exactly what you meant for the fraction. Do you mean just the fraction of 10 divided by n? Do you mean the fraction of 3n+10 divided by the quantity of n+17? It's not clear what you want. So, I'll take a shot at what I think you mean, which is exactly what it says:
Find a common denominator which is n, and multiply the first and last terms by .