Answer:
Step-by-step explanation:
[tex]F -\frac{1}{3} = \frac{1}{12}\\F= \frac{1}{12} +\frac{1}{3}\\F= \frac{1}{12} - \frac{4}{12}\\F= \frac{1-4}{12}\\F= \frac{-3}{12}=-\frac{1}{4}[/tex]
