Ответ:
- а) \(\frac78-\frac56=\frac{21}{24}-\frac{20}{24}=\frac1{24}\).
- б) \(\frac{13}{16}+\frac7{24}=\frac{39}{48}+\frac{14}{48}=\frac{53}{48}=1\frac5{48}\).
- в) \(\frac{19}{20}-\frac5{12}+\frac95=\frac{57}{60}-\frac{25}{60}+\frac{108}{60}=\frac{140}{60}=2\frac13\).
- г) \(4\frac16+5\frac{14}{15}=9+\frac5{30}+\frac{28}{30}=10\frac1{10}\).
- д) \(4\frac5{18}-0{,}7=4+\frac{25}{90}-\frac{63}{90}=3\frac{26}{45}\), поскольку \(0{,}7=\frac7{10}\).
- е) \(6\frac13+2\frac1{15}-4\frac79=\frac{285}{45}+\frac{93}{45}-\frac{215}{45}=\frac{163}{45}=3\frac{28}{45}\).
Ответ: а) \(\frac1{24}\); б) \(1\frac5{48}\); в) \(2\frac13\); г) \(10\frac1{10}\); д) \(3\frac{26}{45}\); е) \(3\frac{28}{45}\).
