Question

alguem me ajudaa pffr ​

Answer 1

Resposta:

$a)( \frac{ - 3}{9} ) + ( + \frac{5}{9} ) = \frac{2}{9} \\ \\ b) (\frac{8}{7}) - ( \frac{7}{7} ) = \frac{1}{7}$

$c) (\frac{132}{5} ) + ( \frac{15}{5}) = \frac{147}{5}$

$d)( \frac{ - 4}{6} ) + ( + \frac{5}{2} ) = \frac{ - 4 + 15}{12} = \frac{11}{12}$

$e)( \frac{10}{4} ) - (\frac{3}{7} ) = \frac{70 - 12}{28} = \frac{58}{28} = \frac{29}{14}$