2) Сократите дроби: 2/8; 15/18; 7/28; 3/9; 14/34; 6/12; 8/44; 36/63; 3/54; 4/64; 18/48; 56/72; 3/87; 10/45; 2/38; 45/63; 5/35; 6/66.

Делим числитель и знаменатель каждой дроби на их наибольший общий делитель:

1. \(\frac{2}{8}=\frac{1}{4}\).
2. \(\frac{15}{18}=\frac{5}{6}\).
3. \(\frac{7}{28}=\frac{1}{4}\).
4. \(\frac{3}{9}=\frac{1}{3}\).
5. \(\frac{14}{34}=\frac{7}{17}\).
6. \(\frac{6}{12}=\frac{1}{2}\).
7. \(\frac{8}{44}=\frac{2}{11}\).
8. \(\frac{36}{63}=\frac{4}{7}\).
9. \(\frac{3}{54}=\frac{1}{18}\).
10. \(\frac{4}{64}=\frac{1}{16}\).
11. \(\frac{18}{48}=\frac{3}{8}\).
12. \(\frac{56}{72}=\frac{7}{9}\).
13. \(\frac{3}{87}=\frac{1}{29}\).
14. \(\frac{10}{45}=\frac{2}{9}\).
15. \(\frac{2}{38}=\frac{1}{19}\).
16. \(\frac{45}{63}=\frac{5}{7}\).
17. \(\frac{5}{35}=\frac{1}{7}\).
18. \(\frac{6}{66}=\frac{1}{11}\).