Question

Помогите, пожалуйста!

Answer 1

$1)5 frac{25}{100} - 5 frac{1}{20} = frac{525}{100} - frac{101}{20} = frac{525 - 505}{100} = frac{20}{100} = frac{1}{5} \ 2) frac{2}{10} + frac{4}{5} = frac{2 + 8}{10} = frac{10}{10} = 1 \ 3) frac{1}{5} div 1 = frac{1}{5}$