Задача №18981

Вычислите: $\left(\frac{5}{8}+\frac{3}{5}\right)\cdot \frac{4}{5}-2,3$$\left(\frac{5}{8}+\frac{3}{5}\right)\cdot \frac{4}{5}-2,3$$$\left(\frac{5}{8}+\frac{3}{5}\right)\cdot \frac{4}{5}-2,3$$