Ответ:
Используем правило: \(a\frac{b}{c}=\frac{ac+b}{c}\).
- \(3\frac14=\frac{3\cdot4+1}{4}=\frac{13}{4}\).
- \(4\frac28=\frac{4\cdot8+2}{8}=\frac{34}{8}\).
- \(8\frac12=\frac{8\cdot2+1}{2}=\frac{17}{2}\).
- \(5\frac37=\frac{5\cdot7+3}{7}=\frac{38}{7}\).
- \(6\frac4{11}=\frac{6\cdot11+4}{11}=\frac{70}{11}\).
- \(7\frac38=\frac{7\cdot8+3}{8}=\frac{59}{8}\).
- \(9\frac56=\frac{9\cdot6+5}{6}=\frac{59}{6}\).
- \(12\frac13=\frac{12\cdot3+1}{3}=\frac{37}{3}\).
- \(2\frac4{15}=\frac{2\cdot15+4}{15}=\frac{34}{15}\).
Ответ: \(\frac{13}{4};\ \frac{34}{8};\ \frac{17}{2};\ \frac{38}{7};\ \frac{70}{11};\ \frac{59}{8};\ \frac{59}{6};\ \frac{37}{3};\ \frac{34}{15}\).
