Question

In a school library, 7/12 of the books are about science. Of the science books, 2/3 are about mammals. What fraction of the library books are about mammals? Make an equation that shows the word problem. Use m to represent the books that are about mammals.

A) m = (7/12) x (2/3)
B) m = (7/12) + (2/3)
C) m = (7/12) - (2/3)
D) m = (7/12) * (2/3)

Answer 1

The correct equation to find what fraction of the library books are about mammals is m = (7/12) × (2/3), which is option A. You multiply the fractions of science books by the fraction of those that are about mammals.

Step-by-step explanation:

To determine what fraction of the library books are about mammals, we need to multiply the fraction of books that are about science by the fraction of science books that are about mammals.

Since 7/12 of the books are about science and 2/3 of these science books are about mammals, we can set up the equation using multiplication to find the fraction of all library books that are about mammals. The correct equation to represent this word problem is:

m = (7/12) × (2/3)

Thus, the correct answer is:

Choice A) m = (7/12) × (2/3)