Ответ:
- \(7.8\cdot\frac{4}{13}-61.5:\left(13\frac{2}{3}\right)+198.8=2.4-4.5+198.8=196.7\).
Ответ: 196,7. - \(19.25\cdot\frac{5}{11}+5.76\cdot\frac{5}{12}-13.0009=8.75+2.4-13.0009=-1.8509\).
Ответ: −1,8509. - \(4.625\cdot2\frac{2}{15}:2.96-2\frac{4}{7}=\frac{37}{8}\cdot\frac{32}{15}:\frac{74}{25}-\frac{18}{7}=\frac{10}{3}\cdot\frac{25}{74}-\frac{18}{7}=\frac{125}{111}-\frac{18}{7}=-\frac{1123}{777}\).
Ответ: \(-\frac{1123}{777}\). - \(30.25:4\frac{5}{7}:1.05-2\frac{1}{6}=\frac{121}{4}:\frac{33}{7}:\frac{21}{20}-\frac{13}{6}=\frac{121}{4}\cdot\frac{7}{33}\cdot\frac{20}{21}-\frac{13}{6}=\frac{605}{99}-\frac{13}{6}=\frac{717}{198}\).
Ответ: \(\frac{239}{66}\).
