Question

Oi boa tarde, poderiam responder com cálculos pfvr!!

Answer 1

$\frac{3}{2} + \frac{4}{5} - \frac{8}{5} = \frac{75+40-80}{50} = \frac{35}{50} = \frac{7}{10}$

$\frac{2}{3} + \frac{1}{5} - \frac{3}{10} = \frac{100+30-45}{150} = \frac{85}{150} = \frac{17}{30}$