In a fifth grade class, 4/5 of the girls have brown hair. of the brown haired girls, 3/4 of them have long hair. of the girls with long brown hair, 1/3 of them have green eyes.

part a
what fraction of the girls in the class have long brown hair?

part b
what fraction of the girls in the class have long brown hair and green eyes? explain how you found your answer.