Question

A pergunta tá na foto aí kkk

Answer 1

Resposta:

$\frac{7}{2} -[\frac{1}{2} -(\frac{1}{4}+1)*\frac{1}{10}  ]\\\frac{7}{2} -[\frac{1}{2} -(\frac{5}{4})*\frac{1}{10}  ]\\\frac{7}{2} -[\frac{1}{2} -(\frac{5}{40})  ]\\\frac{7}{2} -[\frac{20}{40} -(\frac{5}{40})  ]\\\frac{7}{2} -\frac{15}{40}  \\\frac{140}{40} -\frac{15}{40}  \\\frac{125}{40} \\\\Simplicando \frac{125}{40} por \frac{5}{5} = \frac{25}{8} \\\\Inverso   \frac{25}{8}  = \frac{8}{25}$

Explicação passo-a-passo: