To determine how many days it will take Mallory to run 24 miles if she runs \( \frac{3}{4} \) of a mile each day, we can use the following calculation:
- Daily distance: Mallory runs \( \frac{3}{4} \) mile per day.
- Total miles to run: Mallory wants to run 24 miles.
Now, we can set up the equation for the number of days \( d \) it will take:
\[ d \times \frac{3}{4} = 24 \]
Next, solve for \( d \):
\[ d = \frac{24}{\frac{3}{4}} \]
To divide by a fraction, we can multiply by the reciprocal:
\[ d = 24 \times \frac{4}{3} \]
Now, perform the multiplication:
\[ d = \frac{24 \times 4}{3} = \frac{96}{3} = 32 \]
Therefore, it will take Mallory 32 days to run 24 miles.