Ответ:
Используем правило: чтобы заменить проценты дробью, делим значение процентов на 100.
- а) \(2\% = \frac{2}{100} = \frac{1}{50}\); \(5\% = \frac{5}{100} = \frac{1}{20}\); \(65\% = \frac{65}{100} = \frac{13}{20}\); \(90\% = \frac{90}{100} = \frac{9}{10}\).
- б) \(1{,}7\% = \frac{17}{1000}\); \(0{,}8\% = \frac{8}{1000} = \frac{1}{125}\); \(0{,}08\% = \frac{8}{10000} = \frac{1}{1250}\); \(104{,}5\% = \frac{1045}{1000} = \frac{209}{200}\).
- в) \(\frac{4}{7}\% = \frac{4}{7} \cdot \frac{1}{100} = \frac{1}{175}\); \(1\frac{2}{3}\% = \frac{5}{3} \cdot \frac{1}{100} = \frac{1}{60}\); \(33\frac{1}{3}\% = \frac{100}{3} \cdot \frac{1}{100} = \frac{1}{3}\); \(66\frac{2}{3}\% = \frac{200}{3} \cdot \frac{1}{100} = \frac{2}{3}\).
- г) \(150\% = \frac{150}{100} = \frac{3}{2}\); \(200\% = 2\); \(450\% = \frac{450}{100} = \frac{9}{2}\); \(800\% = 8\).
Ответ: а) \(\frac{1}{50}; \frac{1}{20}; \frac{13}{20}; \frac{9}{10}\). б) \(\frac{17}{1000}; \frac{1}{125}; \frac{1}{1250}; \frac{209}{200}\). в) \(\frac{1}{175}; \frac{1}{60}; \frac{1}{3}; \frac{2}{3}\). г) \(\frac{3}{2}; 2; \frac{9}{2}; 8\).
