Question

(1+5/2)/(3/8÷1/4)-(1/2)^2

Answer 1

Resposta:

$R=\frac{25}{12}$

Explicação passo-a-passo:

Calculando separadamente cada termo:

• $(1+\frac{5}{2} )=(\frac{2+5}{2})=\frac{7}{2}$

• $\frac{\frac{3}{8} }{\frac{1}{4} } =\frac{3}{8} .\frac{4}{1} =\frac{3}{2}$

• $(\frac{1}{2} )^{2} =\frac{1}{4}$

Logo,

($\frac{7}{2}$÷$\frac{3}{2}$)-$\frac{1}{4}$

$=(\frac{7}{2} .\frac{2}{3})-\frac{1}{4} \\=\frac{7}{3} -\frac{1}{4} \\=\frac{28-3}{4} =\frac{25}{12}$