Давай решим этот пример по шагам:
\[ \frac{6}{13} \times \frac{2}{3} = \frac{6 \times 2}{13 \times 3} = \frac{12}{39} \]
\[ \frac{12}{39} = \frac{12 \div 3}{39 \div 3} = \frac{4}{13} \]
\[ \frac{4}{13} + \frac{19}{11} \]
\[ \frac{4}{13} = \frac{4 \times 11}{13 \times 11} = \frac{44}{143} \]
\[ \frac{19}{11} = \frac{19 \times 13}{11 \times 13} = \frac{247}{143} \]
\[ \frac{44}{143} + \frac{247}{143} = \frac{44 + 247}{143} = \frac{291}{143} \]
\[ \frac{291}{143} = 2 \frac{5}{143} \]
Ответ:
\[ \frac{291}{143} \] или \[ 2 \frac{5}{143} \]