Answer:
To add mixed numbers, we first need to convert them into improper fractions.
-10 4/5 can be written as -((10 × 5) + 4)/5 = -54/5
8 1/5 can be written as ((8 × 5) + 1)/5 = 41/5
Now we can add the fractions:
-54/5 + 41/5 = -13/5
Therefore, -10 4/5 + 8 1/5 simplifies to -13/5 or -2 3/5 as a mixed number.