7/11 + 8/11 =

Since the fractions have a common denominator, we can add the numerators directly:

\( \frac{7}{11} + \frac{8}{11} = \frac{7 + 8}{11} = \frac{15}{11} \)

Convert the improper fraction to a mixed number:

\( \frac{15}{11} = 1 \frac{4}{11} \)

Ответ: 1 4/11