6) 7 10 4 15'; г) 8 11 35 и; 44 e) 17 24 5 и 8

б) \(\frac{7}{10}\) и \(\frac{4}{15}\). Общий знаменатель: НОК(10, 15) = 30.

\(\frac{7}{10} = \frac{7 \times 3}{10 \times 3} = \frac{21}{30}\)

\(\frac{4}{15} = \frac{4 \times 2}{15 \times 2} = \frac{8}{30}\)

г) \(\frac{8}{11}\) и \(\frac{35}{44}\). Общий знаменатель: 44.

\(\frac{8}{11} = \frac{8 \times 4}{11 \times 4} = \frac{32}{44}\)

\(\frac{35}{44} = \frac{35}{44}\)

e) \(\frac{17}{24}\) и \(\frac{5}{8}\). Общий знаменатель: 24.

\(\frac{17}{24} = \frac{17}{24}\)

\(\frac{5}{8} = \frac{5 \times 3}{8 \times 3} = \frac{15}{24}\)

Ответ: б) \(\frac{21}{30}\) и \(\frac{8}{30}\); г) \(\frac{32}{44}\) и \(\frac{35}{44}\); e) \(\frac{17}{24}\) и \(\frac{15}{24}\)