on: 2\\frac{1}{5} =

$on: 2\\frac{1}{5} =$

on: 2\frac{1}{5} =

Dividing by a fraction is equivalent to multiplying by its reciprocal. So $2\div\frac{1}{5}=2\times\frac{5}{1}$.

$2\times\frac{5}{1}=\frac{2\times5}{1}=10$.

$10$