Question

( 3 + 1/2) vezes 4/5

Answer 1

$(3 + \frac{1}{2}) \times \frac{4}{5} = \\ (\frac{6 + 1}{2} ) \times \frac{4}{5} = \\ \frac{7}{2} \times \frac{4}{5} = \frac{7 \times 4}{2 \times 5} = \frac{28}{10} = 2.8$