Question

A box in a college bookstore contains books, and each book in the box is a history book, an english book or a science book. if one-third of these books are history books and one-sixth are english books, what fraction of the books are science books? show work

Answer 1

$\frac{1}{3} + \frac{1}{6} = \\ \frac{2}{6} + \frac{1}{6} = \frac{3}{6} \\ \frac{6}{6} - \frac{3}{6} = \frac{3}{6} or \: \frac{1}{2}$