Question

respondem aí pessoal fazendo favor kk

Answer 1

b)
$+ \frac{6}{5}$
c)
$- \frac{4}{1} \times + \frac{1}{4} \\ \\ - \frac{3}{4} \times + \frac{4}{3} \\ \\ - \frac{7}{8} \times \frac{8}{7}$

d) - b ÷ a

e)
$- \frac{5}{2} \times \frac{2}{5} \\ \\ \frac{ - 5 \times 2}{5 \times 2} = \\ \\ - \frac{10}{10} = 1$