The expression you provided is:

$\frac{3}{5} + \frac{1}{5} + \frac{4}{5} + \frac{3}{5}$

Since all the fractions have the same denominator, you can add the numerators directly:

$3 + 1 + 4 + 3 = 11$

So, the sum is:

$\frac{11}{5}$

This can also be expressed as a mixed number:

$\frac{11}{5} = 2 \frac{1}{5}$

Thus, the result is $\frac{11}{5}$ or $2 \frac{1}{5}$.

Would you like further details on this? Here are some related questions:

1. How do you convert improper fractions to mixed numbers?
2. What is the process of adding fractions with different denominators?
3. How do you simplify fractions when possible?
4. How do you subtract fractions with the same denominator?
5. Can improper fractions always be converted into mixed numbers?

Tip: Always check if the fractions share the same denominator before adding or subtracting them!