Question

2/3 - 2/8 [ +2 ( 1/3 + 2/5)] a resposta para essa expressão é 193/60? queria saber se minha resposta esta correta

Answer 1

$\frac{2}{3} - \frac{2}{8} ( 2 ( \frac{1}{3} + \frac{2}{5}))$

$\frac{2}{3} - \frac{1}{4} ( 2 ( \frac{1}{3} + \frac{2}{5}))$

$\frac{2}{3}  - \frac{1}{4} ( 2 ( \frac{11}{15}))$

$\frac{2}{3} - \frac{1}{4} (\frac{22}{15})$

$\frac{2}{3} - \frac{11}{30}$

$\boxed{= \frac{3}{10}}$

Answer 2

Resposta:

$\frac{2}{3} -\frac{2}{8} [+2(\frac{2}{8} +\frac{2}{5} )]\\\frac{16}{24} - \frac{6}{24} [+2(\frac{10}{40} +\frac{16}{40} )]\\\frac{10}{24} [+2.\frac{26}{40} ]\\\frac{10}{24} + \frac{52}{40} = \frac{50+156}{120}$=$\frac{206}{120}$

Explicação passo-a-passo: