Пошаговое объяснение:

[tex]8 \frac{3}{4} \times 1 \frac{3}{14} = \frac{8 \times 4 + 3}{4} \times \frac{1 \times 14 + 3}{14} [/tex]

[tex] = \frac{32 + 3}{4} \times \frac{14 + 3}{14} = \frac{35}{4} \times \frac{17}{14} = \frac{35 \times 17}{4 \times 14} [/tex]

[tex] = \frac{595}{56} = \frac{85 \times 7}{8 \times 7} = \frac{85}{8} = 10 \frac{5}{8} [/tex]