Question

Qual é o valor dessa espreção numerica (-1/2 : 2/5) + (2/3 . 5/2) gente me ajuda ​

Answer 1

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$( \frac{ - 1}{2} \div \frac{2}{5} ) + ( \frac{2}{3} \times \frac{5}{2} )$

$( \frac{ - 1}{2} \times \frac{5}{2} ) + ( \frac{10}{6} )$

$\frac{ - 5}{4} + \frac{5}{3}$

$\frac{ - 15}{12} + \frac{20}{12}$

$\frac{ 5}{12}$

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Resposta:

5/12

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Att: MarcosPCV