3) $\frac{13}{24}\cdot\frac{8}{39}+\frac{5}{16}\cdot\frac{12}{25}$

Question

Вопрос: $Фото задания: 3) $\frac{13}{24}\cdot\frac{8}{39}+\frac{5}{16}\cdot\frac{12}{25}$$ Фото задания

Accepted Answer

\[\frac{13}{24}\cdot\frac{8}{39}=\frac{1}{9},\qquad \frac{5}{16}\cdot\frac{12}{25}=\frac{3}{20}.\]

\[\frac{1}{9}+\frac{3}{20}=\frac{20}{180}+\frac{27}{180}=\frac{47}{180}.\]

Ответ: $\frac{47}{180}$

3) \(\frac{13}{24}\cdot\frac{8}{39}+\frac{5}{16}\cdot\frac{12}{25}\)