2) \(\frac{7}{12}+\frac{7}{6}\)

\(\frac{7}{6}=\frac{14}{12}\).

\(\frac{7}{12}+\frac{14}{12}=\frac{21}{12}=\frac{7}{4}\).

Ответ: \(\frac{7}{4}=1\frac{3}{4}\)