There are about 57 fiction books in the small library
If there are 5 nonfiction books for every 9 fiction books, this means that the ratio of fiction to non-fiction is 5:4
Total books = 5 + 4 = 9
Given that the total number of books is 130;
Fiction books = ratio of fiction/Total books * 130
Fiction books = 4/9 * 130
Fiction books = 520/9
Fiction books = 57.7
This shows that there are about 57 fiction books in the small library
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