Ответ:
- \(7.8\cdot\frac4{13}=2.4\), \(13\frac23=\frac{41}{3}\), сондықтан \(61.5:\frac{41}{3}=4.5\).
\(2.4-4.5+198.8=196.7\). Жауабы: 196,7. - \(19.25\cdot\frac5{11}=8.75\), \(5.76\cdot\frac5{12}=2.4\).
\(8.75+2.4-13.006=-1.856\). Жауабы: −1,856. - \(4.625=\frac{37}{8}\), \(2\frac2{15}=\frac{32}{15}\), \(2.96=\frac{74}{25}\).
\(\frac{37}{8}\cdot\frac{32}{15}:\frac{74}{25}=\frac{20}{3}\).
\(\frac{20}{3}-2\frac47=\frac{20}{3}-\frac{18}{7}=\frac{86}{21}=4\frac27\). Жауабы: \(4\frac27\). - \(30.25:\frac{33}{7}:1.05=\frac{121}{4}\cdot\frac7{33}\cdot\frac{20}{21}=\frac{55}{9}\).
\(\frac{55}{9}-2\frac16=\frac{55}{9}-\frac{13}{6}=\frac{77}{18}=4\frac5{18}\). Жауабы: \(4\frac5{18}\).
