Ответ:
\[\frac{12}{25}\cdot\frac{15}{16}=\frac{9}{20}.\]
\[\frac{11}{20}-\frac{9}{20}=\frac{2}{20}=\frac{1}{10}.\]
Ответ: \(\frac{1}{10}\)
\[\frac{12}{25}\cdot\frac{15}{16}=\frac{9}{20}.\]
\[\frac{11}{20}-\frac{9}{20}=\frac{2}{20}=\frac{1}{10}.\]
Ответ: \(\frac{1}{10}\)