What is four fifths of 100?

Answer 1

Well, darling, four fifths of 100 is 80. It's like asking how many slices of cheesecake you can have when you're on a diet - you can only have four out of the five slices, so you're left with 80% of the deliciousness. Just remember, math doesn't lie, but your cravings might!

Answer 2

100 x 4/5 = 80
4/5 of 100 = 80