К-2. 1. Сократите дроби: 28/35, 44/88, 196/84.

1. \(\frac{28}{35}=\frac{28:7}{35:7}=\frac45\).
2. \(\frac{44}{88}=\frac{44:44}{88:44}=\frac12\).
3. \(\frac{196}{84}=\frac{196:28}{84:28}=\frac73\).

Ответ: \(\frac45;\ \frac12;\ \frac73\).