Question

-1/6•4,2-(5/8-1)= ? Помогите решить

Answer 1

-1/6•4,2-(5/8-1)=

- 1/6 x 42/10  - (5/8 - 8/8) =

- 42/60 - (- 3/8) =

- 7/10 + 3/8 =

( - 28 + 15) / 40 =

- 13 / 40

Answer 2

$- \frac{1}{6} \times 4.2 - ( \frac{5 }{8} - 1) = - \frac{1 \times 42}{6 \times 10} - \frac{5 - 8}{8} =$
$= - \frac{7}{10} + \frac{3}{8} = \frac{ - 56 + 30}{80} = - \frac{26}{80} = - \frac{13}{40}$