Question

preciso de ajuda, por favor!!​

Answer 1

A)

$\frac{1}{4} + \frac{9}{6} - \frac{5}{3} = \\ \\ \frac{1}{4} + \frac{3}{2} - \frac{5}{3} \\ \\ \frac{3 + 18 - 20}{12} \\ \\ \frac{1}{12}$

B)

$\frac{13}{3} - \frac{1}{10} - \frac{4}{15} = \\ \\ \frac{130 - 3 - 8}{30} \\ \\ \frac{119}{30}$