The ratio of fiction to non-fiction books in Mr. Wolfe’s class library is 7:6. If each classroom has 48 non-fiction books, how many fiction books will there be?

Answer 1

non-fiction to fiction ratio = 7:6

7/(7+6) = 7/13 are non-fiction

6/13 are fiction

6/13 times 42 = (6)(42)/13 = 252/13 = about 19.385

= about 19 fiction books on a shelf of 42 total books

42-19 = 23 non-fiction books

23:19 is about 7:6

23/19 = about 1.21

7/6 = about 1.17

1.21... = about 1.17...