SEMPLICE MEDIO DIFFICILE

$$\frac{5}{8}+\frac{2}{8}=$$
$$\frac{2}{4}+\frac{7}{3}=$$
$$\frac34+\frac{2}{5}+\frac{7}{10}=$$
$$2+\frac{1}{8}+\frac{5}{6}=$$
$$\left(\frac{11}{6}-\frac{5}{4}\right)-\left(\frac{2}{3}+\frac{3}{4}\right)=$$
$$\left[3+\left(\frac{14}{6}-\frac{7}{15}-\frac{1}{5}\right)-\left(\frac{7}{3}-\frac{5}{6}+\frac{1}{2}\right)\right]-\frac{5}{3}=$$
$$\frac{2}{3}\times\frac{3}{4}$$
$$\left(\frac{7}{3}-\frac{3}{2}\right)\times\left(\frac{1}{3}-\frac{1}{5}\right)=$$
$$1+\left(4+\frac{1}{3}\right)\times\left(4-\frac{1}{3}\right)\times\left(\frac{10}{13}-\frac{1}{2}\right)\times\frac{6}{77}-\frac{1}{6}=$$