Question

помогите пожалуйста

Answer 1

$\frac{2}{5}-\frac{4}{15}=\frac{6-4}{15}=\frac{2}{15}\\\\-\frac{5}{8}-\frac{4}{9}=-\frac{45+32}{72}=-\frac{77}{72}=-1\frac{5}{72}$