## Basic College Mathematics (9th Edition)

$\frac{3}{4}$ acres of seedling
The forester planted $\frac{5}{12}+\frac{11}{12}=\frac{5+11}{12}=\frac{16}{12}$ acres of seedlings. To calculate how many acres of seedlings remain, we can take the difference between the total amount of acres of seedlings planted and the amount of seedlings destroyed by frost. $\frac{16}{12}-\frac{7}{12}=\frac{16-7}{12}=\frac{9}{12}=\frac{9\div3}{12\div3}=\frac{3}{4}$ acres of seedlings.