Question

0.4-3/19*(4.22-28.07:3.5)

Answer 1

$frac{2}{5} - frac{3}{19} times (4.22 - 8.02) = \ = frac{2}{5} - frac{3}{19} times ( - 3.8) = frac{2}{5} - frac{3}{19} times ( - frac{19}{5} ) = frac{2}{5} + frac{3}{5} = 1$