[tex]-1\frac{1}{9}:3=-\frac{10}{9}\cdot\frac{1}{3}=-\frac{10}{27}\\\\-1\frac{1}{9}:3,5=-\frac{10}{9}:3\frac{1}{2}=-\frac{10}{9}:\frac{7}{2}=-\frac{10}{9}\cdot\frac{2}{7}=-\frac{20}{63}[/tex]
