Ответ:
\[\frac{10}{9}\cdot\frac{4}{3}=\frac{40}{27}.\]
\[\frac{5}{3}+\frac{40}{27}=\frac{45}{27}+\frac{40}{27}=\frac{85}{27}.\]
Ответ: \(\frac{85}{27}\).
\[\frac{10}{9}\cdot\frac{4}{3}=\frac{40}{27}.\]
\[\frac{5}{3}+\frac{40}{27}=\frac{45}{27}+\frac{40}{27}=\frac{85}{27}.\]
Ответ: \(\frac{85}{27}\).