35. Найдите значение выражения: 1) 8/15 : 18/35; 2) 16/24 : 8/36; 3) 13/33 : 39/44; 4) 12/28 : 4/35.

1. \(\frac{8}{15}:\frac{18}{35}=\frac{8}{15}\cdot\frac{35}{18}=\frac{28}{27}\).
2. \(\frac{16}{24}:\frac{8}{36}=\frac{2}{3}\cdot\frac{36}{8}=3\).
3. \(\frac{13}{33}:\frac{39}{44}=\frac{13}{33}\cdot\frac{44}{39}=\frac{4}{9}\).
4. \(\frac{12}{28}:\frac{4}{35}=\frac{3}{7}\cdot\frac{35}{4}=\frac{15}{4}\).

Ответ: 1) \(\frac{28}{27}\); 2) 3; 3) \(\frac{4}{9}\); 4) \(\frac{15}{4}\).