Question

Resolva as expressões: b)3/5-0,2+1/10

Answer 1

$\frac{3}{5} -0,2+ \frac{1}{10} = \\ \\ =\frac{3}{5} - \frac{2}{10} + \frac{1}{10} = \\ \\ = \frac{3.2-2+1}{10} = \frac{6-2+1}{10} = \frac{5}{10} = \frac{1}{2}$