Ответ:
- а) \(0{,}4:0{,}5=\frac{4}{10}:\frac{5}{10}=\frac{4}{5}=0{,}8\).
- б) \(0{,}25:1{,}5=\frac{25}{100}:\frac{15}{10}=\frac{25}{100}\cdot\frac{10}{15}=\frac{1}{6}=0{,}1(6)\).
- в) \(1{,}7:0{,}3=\frac{17}{10}:\frac{3}{10}=\frac{17}{3}=5\frac{2}{3}\).
- г) \(12{,}6:1{,}2=\frac{126}{10}:\frac{12}{10}=\frac{126}{12}=10{,}5\).
- д) \(3{,}8:20=\frac{38}{10}:20=\frac{38}{200}=\frac{19}{100}=0{,}19\).
- е) \(0{,}24:0{,}9=\frac{24}{100}:\frac{9}{10}=\frac{24}{100}\cdot\frac{10}{9}=\frac{4}{15}=0{,}2(6)\).
- ж) \(1:0{,}6=1:\frac{6}{10}=\frac{10}{6}=\frac{5}{3}=1\frac{2}{3}\).
- з) \(8:1{,}4=8:\frac{14}{10}=\frac{80}{14}=\frac{40}{7}=5\frac{5}{7}\).
