Both fractions have the same denominator so it's going to be easy. First set up your equation:
[tex] 3 \frac{3}{5} + 9 \frac{3}{5} [/tex]
Add the whole numbers:
[tex] 3 + 9 = 12 [/tex]
Now add the fractions:
[tex] \frac{3}{5} + \frac{3}{5} = \frac{6}{5} [/tex]
add both together:
[tex] 12 + \frac{6}{5} = 12 \frac{6}{5} [/tex]
[tex] \frac{6}{5} [/tex] is an improper fraction so change it:
[tex] 12 \frac{6}{5} = 13 \frac{1}{5} [/tex]
Since 6 is one more than 5, add 1 to the whole number and subtract the numerator and denominator(6 - 5 = 1) and make the remaining the new numerator. That leaves you with [tex] 13 \frac{1}{5} [/tex]
Your answer is [tex] 13 \frac{1}{5} [/tex]
