Ответ:
Чтобы представить смешанное число в виде неправильной дроби, целую часть умножаем на знаменатель и прибавляем числитель дробной части. Полученную сумму записываем в числителе, а знаменатель сохраняем.
- \(3\frac{2}{7}=\frac{3\cdot7+2}{7}=\frac{23}{7}\).
- \(1\frac{3}{4}=\frac{1\cdot4+3}{4}=\frac{7}{4}\).
- \(1\frac{2}{5}=\frac{1\cdot5+2}{5}=\frac{7}{5}\).
- \(2\frac{1}{9}=\frac{2\cdot9+1}{9}=\frac{19}{9}\).
- \(4\frac{2}{3}=\frac{4\cdot3+2}{3}=\frac{14}{3}\).
- \(5\frac{3}{7}=\frac{5\cdot7+3}{7}=\frac{38}{7}\).
- \(9\frac{1}{4}=\frac{9\cdot4+1}{4}=\frac{37}{4}\).
- \(3\frac{3}{8}=\frac{3\cdot8+3}{8}=\frac{27}{8}\).
- \(7\frac{2}{3}=\frac{7\cdot3+2}{3}=\frac{23}{3}\).
- \(6\frac{2}{3}=\frac{6\cdot3+2}{3}=\frac{20}{3}\).
- \(8\frac{3}{10}=\frac{8\cdot10+3}{10}=\frac{83}{10}\).
- \(4\frac{2}{21}=\frac{4\cdot21+2}{21}=\frac{86}{21}\).
- \(3\frac{4}{11}=\frac{3\cdot11+4}{11}=\frac{37}{11}\).
- \(9\frac{6}{11}=\frac{9\cdot11+6}{11}=\frac{105}{11}\).
- \(7\frac{12}{20}=\frac{7\cdot20+12}{20}=\frac{152}{20}\).
- \(4\frac{16}{25}=\frac{4\cdot25+16}{25}=\frac{116}{25}\).
- \(6\frac{8}{15}=\frac{6\cdot15+8}{15}=\frac{98}{15}\).
- \(3\frac{8}{25}=\frac{3\cdot25+8}{25}=\frac{83}{25}\).
- \(5\frac{7}{12}=\frac{5\cdot12+7}{12}=\frac{67}{12}\).
- \(3\frac{6}{17}=\frac{3\cdot17+6}{17}=\frac{57}{17}\).
- \(10\frac{3}{8}=\frac{10\cdot8+3}{8}=\frac{83}{8}\).
- \(12\frac{2}{5}=\frac{12\cdot5+2}{5}=\frac{62}{5}\).
- \(15\frac{1}{6}=\frac{15\cdot6+1}{6}=\frac{91}{6}\).
- \(20\frac{2}{9}=\frac{20\cdot9+2}{9}=\frac{182}{9}\).
- \(11\frac{4}{7}=\frac{11\cdot7+4}{7}=\frac{81}{7}\).
- \(16\frac{2}{3}=\frac{16\cdot3+2}{3}=\frac{50}{3}\).
- \(13\frac{4}{5}=\frac{13\cdot5+4}{5}=\frac{69}{5}\).
- \(27\frac{2}{3}=\frac{27\cdot3+2}{3}=\frac{83}{3}\).
- \(16\frac{3}{4}=\frac{16\cdot4+3}{4}=\frac{67}{4}\).
- \(14\frac{2}{5}=\frac{14\cdot5+2}{5}=\frac{72}{5}\).
Ответ: 1) \(\frac{23}{7}\); 2) \(\frac{7}{4}\); 3) \(\frac{7}{5}\); 4) \(\frac{19}{9}\); 5) \(\frac{14}{3}\); 6) \(\frac{38}{7}\); 7) \(\frac{37}{4}\); 8) \(\frac{27}{8}\); 9) \(\frac{23}{3}\); 10) \(\frac{20}{3}\); 11) \(\frac{83}{10}\); 12) \(\frac{86}{21}\); 13) \(\frac{37}{11}\); 14) \(\frac{105}{11}\); 15) \(\frac{152}{20}\); 16) \(\frac{116}{25}\); 17) \(\frac{98}{15}\); 18) \(\frac{83}{25}\); 19) \(\frac{67}{12}\); 20) \(\frac{57}{17}\); 21) \(\frac{83}{8}\); 22) \(\frac{62}{5}\); 23) \(\frac{91}{6}\); 24) \(\frac{182}{9}\); 25) \(\frac{81}{7}\); 26) \(\frac{50}{3}\); 27) \(\frac{69}{5}\); 28) \(\frac{83}{3}\); 29) \(\frac{67}{4}\); 30) \(\frac{72}{5}\).
