Помогите пример решить(( 10 целых,10/11...

$\frac{10\frac{10}{11}:12}{2\frac{21}{22}}\cdot6\frac{1}{2}=2$

1) $10\frac{10}{11}:12=\frac{120}{11}:12=\frac{120}{11}\cdot\frac{1}{12}=\frac{10}{11}$

2) $\frac{10}{11}:2\frac{21}{22}=\frac{10}{11}:\frac{65}{22}=\frac{10}{11}\cdot\frac{22}{65}=\frac{20}{65}=\frac{4}{13}$

3) $\frac{4}{13}\cdot6\frac{1}{2}=\frac{4}{13}\cdot\frac{13}{2}=2$