Given:
[tex]4\frac{2}{5}+8\frac{1}{5}[/tex]Let's perform the addition of the mixed fractions.
Step 1:
Add the whole numbers
[tex]\text{Whole numbers = 4 + 8 = 12}[/tex]Step 2:
Add the fractions.
Since both fractions have the same denominators, let's add the numerators
[tex]\frac{2}{5}+\frac{1}{5}=\frac{2+1}{5}=\frac{3}{5}[/tex]Thus, we have:
[tex]12\frac{3}{5}[/tex]ANSWER:
[tex]12\frac{3}{5}[/tex]