Ответ:

\(\frac{26}{44}=\frac{13}{22}\), \(\frac{50}{75}=\frac{2}{3}\).

\(\frac{13}{22}+\frac{2}{3}=\frac{39}{66}+\frac{44}{66}=\frac{83}{66}=1\frac{17}{66}\).

Ответ: \(1\frac{17}{66}\).