Odpowiedź i szczegółowe wyjaśnienie:
[tex]0,8\cdot\dfrac{-12-(-2)}{-2,6-1,4}:\dfrac{3-0,25}{0,05}=\\\\=\dfrac{8}{10}\cdot\dfrac{-12+2}{-4}:\dfrac{2,75}{0,05}=\\\\=\dfrac{8}{10}\cdot\dfrac{-10}{-4}:\dfrac{2,75}{0,05}=\\\\=2:\dfrac{2,75}{0,05}=\\\\=2\cdot\dfrac{0,05}{2,75}=\\\\=2\cdot\dfrac{\frac{5}{100}}{\frac{275}{100}}=\\\\=2\cdot\dfrac{5}{100}\cdot\dfrac{100}{275}=\\\\=2\cdot\dfrac{1}{55}=\dfrac{2}{55}[/tex]
