Question

resolva as seguintes expressões 9/4 × 1/3 - 2/15 × 5/2 me ajudem !!!!!!!!!!!

Answer 1

$\frac{9}{4} \times \frac{1}{3} - \frac{2}{15} \times \frac{5}{2} \\ \\ \frac{9}{12} - \frac{10}{30} \\ \\ \frac{3}{4} - \frac{1}{3} \\ \\ \frac{9 - 4}{12} = \frac{5}{12}$