Question

expressão 2/5 × 8/3 + 2/6 × 3/5 : 2 - 3/6

Answer 1

$\dfrac{ \dfrac{2}{5} * \dfrac{8}{3} * \dfrac{3}{5}}{2} - \dfrac{3}{6} \\ \\ \\ \dfrac{ \dfrac{32}{90}}{2} - \dfrac{3}{6} \\ \\ \\ \dfrac{ \dfrac{16}{45}}{2} - \dfrac{3}{6} \\ \\ \\ \dfrac{8}{45} - \dfrac{3}{6} \\ \\ \\ => -\dfrac{29}{90}$