A bag contains

marbles:

are green,

are red, and

are blue. Brian chooses a marble at random, and without putting it back, chooses another one at random. What is the probability that both marbles he chooses are green? Write your answer as a fraction in simplest form.

if you add up all the marbles and then put it as the denominator then put 2 on top. divide. then do the same except this time take 1 minus the amount of total marbles. put it as the denominator and then 2 on top. divide. next take both numbers and make them a fraction. turn to simplest form. ithink