Vypočítej \frac{5}{2}+\frac{7}{4}-\frac{4-(2+8)}{3}.
=\frac{80}{12}=\frac{20}{3}
=\frac{70}{12}=\frac{35}{6}
=\frac{75}{12}=\frac{25}{4}
=\frac{65}{12}=\frac{65}{12}