Question

Calcule as seguintes expressões

Answer 1

Vamos lá:

e)

$\frac{1+\frac{1}{3} }{3} \\\\\frac{\frac{4}{3} }{3}\\\\\frac{4}{3} .\frac{1}{3} \\\\\frac{4}{9}$

f)

$\frac{\frac{3}{10} }{\frac{1}{2} -1\frac{1}{5} } \\\\\frac{\frac{3}{10} }{\frac{1}{2} -\frac{6}{5} } \\\\\frac{\frac{3}{10} }{\frac{-7}{10} } \\\\\frac{3}{10}.\frac{10}{-7}\\\\ \frac{-3}{7}$

Espero ter ajudado, abraço!