Math Question. Niece's Homework from a few nights ago and I'm curious what others may come up with.?

Justin made cookies for Remembrance Day. He made 2 2/3 dozen chocolate cookies, 2 dozen peanut cookies, and 1 1/4 dozen oatmeal cookies. If he puts the same number of each cookie in each bad and has no cookies left over, what is the largest number of bags he can fill?