Alvin has some marbles in a box. He keeps 1/3 of them and gives the remainder to Joyce and Sean. Joyce gets 5/8 of the remainder. What fraction of the marbles does Sean get?
If Alvin keeps 1/3 then the remainder that Alvin gives away is 2/3 of the total
Joyce gets 5/8 of the remainder......Sean gets 3/8 of the ramiander
2/3 * 3/8 = 6/24 = 1/4 of the total is what Sean gets