Ответ:
\(2\frac{5}{4}=\frac{13}{4}\), \(2\frac{6}{4}=\frac{14}{4}\).
\(\frac{13}{4}\cdot\frac{14}{4}=\frac{182}{16}=\frac{91}{8}=11\frac{3}{8}\).
Ответ: \(11\frac{3}{8}\).
\(2\frac{5}{4}=\frac{13}{4}\), \(2\frac{6}{4}=\frac{14}{4}\).
\(\frac{13}{4}\cdot\frac{14}{4}=\frac{182}{16}=\frac{91}{8}=11\frac{3}{8}\).
Ответ: \(11\frac{3}{8}\).