Question

oii, me ajuda nisso aqui pfv :'))
$- \frac{2}{3} - ( - \frac{3}{5} )$
$\frac{1}{3} - ( - \frac{1}{2} + \frac{3}{4} ) + (1 + \frac{5}{6} )$
$\frac{2}{5} + ( - \frac{1}{3} )$
$( \: - \frac{5}{8} ) - ( \frac{3}{8} )$
$(0.4) + ( - 2.8)$
$\frac{2}{5} - ( + \frac{1}{4} )$
$( - \frac{1}{4} ) - (3.8)$
$( - 0.54) - ( - 0.6)$
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Answer 1

Resposta:

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