Ответ:
а) \(\frac{48}{84}=\frac{48:12}{84:12}=\frac{4}{7}\).
б) \(0{,}375=\frac{375}{1000}=\frac{3}{8}\).
в) \(\frac{7\cdot12}{30\cdot21}=\frac{12}{30\cdot3}=\frac{12}{90}=\frac{2}{15}\).
а) \(\frac{114}{171}=\frac{114:57}{171:57}=\frac{2}{3}\).
б) \(0{,}2432=\frac{2432}{10000}=\frac{152}{625}\).
в) \(\frac{24\cdot2+24\cdot6}{60\cdot6-60\cdot2}=\frac{24(2+6)}{60(6-2)}=\frac{24\cdot8}{60\cdot4}=\frac{192}{240}=\frac{4}{5}\).
Ответ: \(\frac{4}{7};\ \frac{3}{8};\ \frac{2}{15};\ \frac{2}{3};\ \frac{152}{625};\ \frac{4}{5}\).
