5 3/5 - 4 1/5

To subtract these mixed numbers, we need to first subtract the whole numbers and then the fractions separately.

For the whole numbers:
5 - 4 = 1

For the fractions:
3/5 - 1/5 = 2/5

Therefore, 5 3/5 - 4 1/5 = 1 2/5.