Using it's concept, it is found that the ratio of nonfiction to fiction books that Natalie read is given by:
C 3:4
What is the ratio between two amounts?
The ratio between two amount a and b is given by a divided by b, that is:
\(\frac{a}{b} = a:b\)
In this problem, Natalie read six non fiction and eight fiction books, hence the ratio of nonfiction to fiction books that Natalie read is given by:
6/8 = 3/4 = 3:4
More can be learned about ratios at https://brainly.com/question/24372153
