Wie rechnet man (2-17/16)x(-12)-15x-3/20
\({\color{red}(2-\frac{17}{16} )\times (-12)-15\times (-\frac{3}{20} )}\)
= \({\color{Black}\frac{(32-17)\times (-12)}{16}+\frac{45}{20} }\)
= \(-\frac{180}{16}+\frac{9}{4} \) = \(\frac {-180+36}{16}\)
= \(-\frac{144}{16} \)
= \({\color{Blue}-9}\) !