Dario decides to take each one of the four pieces of sub and share it equally among five of his friends. First, he divides one piece into five equal parts and shares it then the next one and so on what fraction of the party sub did each person get after all the parts were shared out
After sharing out all four pieces of sub among five friends, each person would end up with 4/5 of a piece of sub.
1/5 * 1/4 = 1/20
Apologies for the confusion. You are correct.
After sharing out all four pieces of sub among five friends, each person would actually end up with 1/20 of a piece of sub.