A bag contains 10 marbles 2 are green 2 are red and 6 are blue Susan chooses a marble at random, and without putting it back, chooses another one at...

A bag contains 10 marbles 2 are green 2 are red and 6 are blue Susan chooses a marble at random, and without putting it back, chooses another one at random. What is the probabilitythat both marbles she chooses are green? answer as a fraction in simplest form.