Question

Помогите.$frac{0.3}{1+ frac{1}{9} }$

Answer 1

$1= frac{9}{9} \ frac{3}{10} : (frac{9}{9} + frac{1}{9}) = frac{3}{10} : frac{10}{9} =frac{3}{10} * frac{9}{10}= frac{27}{100}$