Question

resolva as frações:

Pfv me ajudem!

Answer 1

$g) \frac{19}{20} - \frac{7}{12} =$ --mmc(12,20) = 60
$\frac{57}{60} - \frac{35}{60} = \frac{22}{60} = \frac{11}{30}$

h) $\frac{2}{4} * \frac{3}{5} = \frac{6}{20} = \frac{3}{10}$

i) $\frac{4}{8} * \frac{3}{9} = \frac{12}{72} = \frac{6}{36} = \frac{1}{6}$