Question

Calcule o resultado da expressão:


1 (4 5 2)
_ + - X -
2 (5 3 3)

respostas:
3/2
1/5
4/15
7/6
2/3​

Answer 1

oii Bom Dia

Resposta: 7/6

$\huge \boxed{ \begin{array}{c} \bf \Large\frac{1}{2} + (\frac{4}{5} \times \frac{5}{3} - \frac{2}{3} ) \\ \\\Large\bf \: \to reduza \: os \: n\acute{u}meros \\ \Large \frac{1}{2} + (4 \times \frac{1}{3} - \frac{2}{3} ) \\ \\ \Large\to \bf calcule ~ o ~ produto \\ \Large\frac{1}{2} + ( \frac{4}{3} - \frac{2}{3} ) \\ \\ \Large \to \bf subtraia ~ as ~ frac{\!\!\!,} \: \tilde{o}es \\ \Large\frac{1}{2} + \frac{2}{3} \\ \\ \Large \to \bf some ~ as ~frac{\!\!\!,} \: \tilde{o}es \\ \Large \bf \frac{7}{6} \\ \end{array}}$

________________________________

$\Large\boxed{ \begin{array}{c} \bf conta \: armada \\ \bf \frac{1}{2} + (\frac{4}{5} \times \frac{5}{3} - \frac{2}{3} ) \\ \\ \bf \Large \frac{1}{2} + (4 \times \frac{1}{3} - \frac{2}{3} ) \\ \\ \bf\frac{1}{2} + ( \frac{4}{3} - \frac{2}{3} ) \\ \\ \bf\frac{1}{2} + \frac{2}{3} \\ \\ \bf \frac{7}{6} \\ \end{array}}$

________________________________

Espero ter ajudado!!

Bons estudos!!

Answer 2

oii Boa noite

Resposta: (D) 7/6

$\Large\boxed{ \begin{array}{c}\boxed{ \begin{array}{c} \bf \to \: conta \: armada \\ \bf \frac{1}{2} + (\frac{4}{5} \times \frac{5}{3} - \frac{ \: 2 \: }{3} ) \\ \\ \bf \frac{1}{2} + (4 \times \frac{1}{3} - \frac{2}{3} ) \\ \\ \bf\frac{1}{2} + ( \frac{4}{3} - \frac{2}{3} ) \\ \\ \bf\frac{1}{2} + \frac{2}{3} \\ \\ \bf \frac{7}{6} \\ \end{array}} \end{array}}$

________________________________

Espero ter ajudado!!

Bons estudos!!