3) $(2\frac{3}{4}+2\frac{1}{5})\cdot16$

Question

$Фото задания: 3) $(2\frac{3}{4}+2\frac{1}{5})\cdot16$$ Фото задания

Accepted Answer

$2\frac{3}{4}=\frac{11}{4}$, $2\frac{1}{5}=\frac{11}{5}$.

\[\left(\frac{11}{4}+\frac{11}{5}\right)\cdot16=\left(\frac{55}{20}+\frac{44}{20}\right)\cdot16=\frac{99}{20}\cdot16=\frac{396}{5}=79\frac{1}{5}.\]

Ответ: $79\frac{1}{5}$.

3) \((2\frac{3}{4}+2\frac{1}{5})\cdot16\)