H) 2\frac{14}{15}\cdot 6\frac{6}{11}; o) 2\frac{2}{25}\cdot 1\frac{9}{16}; п) \frac{13}{43}\cdot 8\frac{7}{26}.

Решение:

н) $$2 \frac{14}{15} \cdot 6 \frac{6}{11} = \frac{44}{15} \cdot \frac{72}{11} = \frac{4 \cdot 11 \cdot 72}{15 \cdot 11} = \frac{4 \cdot 72}{15} = \frac{288}{15} = \frac{96}{5} = 19 \frac{1}{5}$$

о) $$2 \frac{2}{25} \cdot 1 \frac{9}{16} = \frac{52}{25} \cdot \frac{25}{16} = \frac{52}{16} = \frac{13}{4} = 3 \frac{1}{4}$$

п) $$\frac{13}{43} \cdot 8 \frac{7}{26} = \frac{13}{43} \cdot \frac{215}{26} = \frac{13 \cdot 5 \cdot 43}{43 \cdot 2 \cdot 13} = \frac{5}{2} = 2 \frac{1}{2}$$

Ответ: н) $$19 \frac{1}{5}$$; о) $$3 \frac{1}{4}$$; п) $$2 \frac{1}{2}$$