You can put this solution on YOUR website! 4/xy + 6/xy = 10/xy
any fractions with the same denominator can be added by adding the nominators and keeping the same denominator.
I hope this helps.
P.S. I am trying to start up my own homework help website. I would be extremely grateful if you would e-mail me some feedback on the help you received to adam.chapman@student.manchester.ac.uk
Adam