Question

in a class book order, 2/3 of the books are fantasy and 1/4 of the books are biography. if the order contains 60 books, how many books are either fantasy or bio?

Answer 1

55 of the books are either fantasy or bio

Answer 2

so we know that 2/3=fantasy
1/4=bio
so bio+fantasy=2/3+1/4
2/3 times 4/4=8/12
1/4 times 3/3=3/12
2/3+1/4=8/12+3/12=11/12

11/12 of 60 are bio or fantassy
mltiply
11/12 times 60=660/12=55

answer is 55