Question

como multiplicar fração com numeros entre parenteses:
ex: 1/2.(2-3) Detalhado, por favor

Answer 1

Se resolve normalmente, multiplica numerador por numerador e denominador por denominador.

$\dfrac{1}{2} \times \left( \dfrac{2}{3} \right)\to~~~ \dfrac{1}{2} \times \dfrac{2}{3} \to~~~ \dfrac{1\times2}{2\times 3} \to~~~ \dfrac{2}{6} \to\\\\\\ Simplifique~~por~~2:~~~~ \dfrac{2_{:2}}{6_{:2}} \to~~~ \large\boxed{~ \dfrac{1}{3} ~}$




$\dfrac{1}{2} \times \left( 2-3 \right)\to~~~ se ~~for~~assim,~~basta~~resolver~~o~~que~~tem~~dentro\\\\ dos~~par\^enteses ,~~ e ~~depois~~fa\c ca ~~a~~ multiplica\c c\~ao:\\\\\\ \dfrac{1}{2} \times(-1)\to~~~\large\boxed{~-\dfrac{1}{2}~}$