Ответ:
\(\frac{4}{5}-\frac{8}{15}=\frac{12}{15}-\frac{8}{15}=\frac{4}{15}\).
\(\frac{4}{15}\cdot\frac{5}{12}=\frac{1}{9}\).
Ответ: \(\frac{1}{9}\)
\(\frac{4}{5}-\frac{8}{15}=\frac{12}{15}-\frac{8}{15}=\frac{4}{15}\).
\(\frac{4}{15}\cdot\frac{5}{12}=\frac{1}{9}\).
Ответ: \(\frac{1}{9}\)