Question

5. Calculaţi: sus este imaginea​

Answer 1

Răspuns:

$-\frac{64}{35}$

Explicație pas cu pas:

$\frac{\frac{3}{8} : 0,175 - 1}{0,125 - \frac{3}{4} } = \frac{\frac{3}{8} :\frac{175}{1000}-1 }{\frac{125}{1000} - \frac{3}{4} } = \frac{\frac{3}{8} *\frac{1000}{175} - 1}{\frac{125 - 250*3}{1000} } = \frac{\frac{3*125}{175} - 1}{\frac{-625}{1000} } = \frac{\frac{375 - 175}{175} }{\frac{-5}{8} } = \frac{200}{175} *(-\frac{8}{5} )= -\frac{40*8}{175}$

$= -\frac{8*8}{35} = -\frac{64}{35}$