Ответ:

а)

\[4\frac{7}{16}+3\frac{12}{16}=7\frac{19}{16}=8\frac{3}{16}.\]

б)

\[1\frac{1}{14}=\frac{15}{14},\qquad 2,6=\frac{13}{5}.\]

\[\frac{2,6}{1\frac{1}{14}}=\frac{13}{5}:\frac{15}{14}=\frac{13}{5}\cdot\frac{14}{15}=\frac{182}{75}=2\frac{32}{75}.\]

в)

\[\frac{\sqrt{22}\cdot\sqrt{33}}{\sqrt6}=\sqrt{\frac{22\cdot33}{6}}=\sqrt{121}=11.\]

Ответ: а) \(8\frac{3}{16}\); б) \(2\frac{32}{75}\); в) 11.