Question

AJUDA PFVVVVVVVVVVVVVVV

Answer 1

a

$\frac{14}{15} + \frac{3}{7} \\ \\ \frac{98 + 45}{105} \\ \\ \frac{143}{105}$

B)

$\frac{2}{18} \div \frac{4}{5} \\ \\ \frac{1}{9} \times \frac{5}{4} \\ \\ \frac{5}{36}$

C)

$\frac{5}{8} - \frac{2}{3} \\ \\ \frac{15 - 16}{24} \\ \\ \frac{ - 1}{24}$

$- \frac{1}{24}$

d)

$\frac{10}{90} \times 9 \\ \\ \frac{1}{9} \times 9 \\ \\ 1$