Ответ:

а) НОЗ(7, 2) = 14: \(\frac{5}{7}=\frac{10}{14}\), \(\frac{1}{2}=\frac{7}{14}\).

б) НОЗ(20, 15) = 60: \(\frac{7}{20}=\frac{21}{60}\), \(\frac{1}{15}=\frac{4}{60}\).

в) НОЗ(26, 39) = 78: \(\frac{3}{26}=\frac{9}{78}\), \(\frac{5}{39}=\frac{10}{78}\).

г) НОЗ(11, 8) = 88: \(\frac{8}{11}=\frac{64}{88}\), \(\frac{5}{8}=\frac{55}{88}\).

д) НОЗ(13, 11) = 143: \(\frac{7}{13}=\frac{77}{143}\), \(\frac{2}{11}=\frac{26}{143}\).

е) НОЗ(22, 33) = 66: \(\frac{3}{22}=\frac{9}{66}\), \(\frac{2}{33}=\frac{4}{66}\).

ж) НОЗ(60, 540, 20) = 540: \(\frac{7}{60}=\frac{63}{540}\), \(\frac{13}{540}=\frac{13}{540}\), \(\frac{9}{20}=\frac{243}{540}\).

з) НОЗ(105, 95, 63) = 1995: \(\frac{52}{105}=\frac{988}{1995}\), \(\frac{7}{95}=\frac{147}{1995}\), \(\frac{61}{63}=\frac{1931}{1995}\).

Ответ: а) \(\frac{10}{14},\frac{7}{14}\); б) \(\frac{21}{60},\frac{4}{60}\); в) \(\frac{9}{78},\frac{10}{78}\); г) \(\frac{64}{88},\frac{55}{88}\); д) \(\frac{77}{143},\frac{26}{143}\); е) \(\frac{9}{66},\frac{4}{66}\); ж) \(\frac{63}{540},\frac{13}{540},\frac{243}{540}\); з) \(\frac{988}{1995},\frac{147}{1995},\frac{1931}{1995}\).