Question

Como resolvo as seguintes contas :

12 . ( - 1/2 )

( - 3 ) . ( - 2/3 )

Me ajudem , por favor

Answer 1

Olá!
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Resolução,

A) $\mathsf{12\cdot \big(- \dfrac{1}{2} \big)}$

$\mathsf{\dfrac{12}{1} \cdot - \dfrac{1}{2}}$

$\mathsf{= - \dfrac{12}{2} \to \boxed{= - 6}}$

B) $\mathsf{\big(- 3 \big) \cdot \big( - \dfrac{2}{3} \big)}$

$\mathsf{- \dfrac{3}{1} \cdot - \dfrac{2}{3}}$

$\mathsf{= \dfrac{6}{3} \to \boxed{= 2}}$

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Abraços!