Solve Write a Mixed Numeral for the Answer $920 \mathrm{mi}$ On a Nonstop Flight

Solve. Write a mixed numeral for the answer.
-A Boeing 767 flew $920 \mathrm{mi}$ on a nonstop flight. On the return flight, it landed after having flown $530 \frac{1}{9}$ mi. How far was the plane from its original point of departure?

A) $390 \frac{8}{9} \mathrm{mi}$
B) $390 \frac{1}{9} \mathrm{mi}$
C) $389 \frac{1}{9} \mathrm{mi}$
D) $389 \frac{8}{9} \mathrm{mi}$