Final answer:
Sonya ran 44 9/10 miles.
Step-by-step explanation:
To find out how far Sonya ran, we need to subtract the distance Demetrius ran from the total distance. Demetrius ran 45 miles, and he ran 27 1/10 miles more than Sonya. To find out how far Sonya ran, we subtract 27 1/10 miles from 45 miles.
45 miles - 27 1/10 miles = 45 - 27 1/10 = 44 9/10 miles
So Sonya ran 44 9/10 miles.