1 1 per 6 + 2 1 per 3 : 3,5

[tex]1 \frac{1}{6} + 2 \frac{1}{3} \div 3.5 \\ \frac{7}{6} + \frac{7}{3} \div \frac{35}{10} \\ \frac{7}{6} + \frac{14}{6} \times \frac{10}{35} \\ \frac{21}{6} \times \frac{10}{35} \\ \frac{15}{15} \\ 1[/tex]