Question

resolva as expressões numéricas b)(-13/30)×(-3/13)+(-1/8)÷(+1/8) ​

Answer 1

Resposta:

$\sf{(-13/30)×(-3/13)+(-1/8)÷(+1/8)}$

$\sf{( - \frac{13}{30} })x( - \frac{3}{13} ) - 1$

$\sf{ \frac{13}{30} }x \frac{3}{13} - 1$

$\sf{ \frac{1}{30}x3 - 1 }$

$\sf{ \frac{1}{10} - 1}$

$\rightarrow \boxed{ \boxed{\sf{ - \frac{9}{10} }}} \checkmark$

Explicação passo-a-passo:

(espero ter colaborado)