а) \( \frac{2}{8} = \frac{2 \div 2}{8 \div 2} = \frac{1}{4} \)
б) \( \frac{15}{20} = \frac{15 \div 5}{20 \div 5} = \frac{3}{4} \)
в) \( \frac{18}{30} = \frac{18 \div 6}{30 \div 6} = \frac{3}{5} \)
г) \( \frac{24}{36} = \frac{24 \div 12}{36 \div 12} = \frac{2}{3} \)
д) \( \frac{9}{45} = \frac{9 \div 9}{45 \div 9} = \frac{1}{5} \)
е) \( \frac{64}{48} = \frac{64 \div 16}{48 \div 16} = \frac{4}{3} \)
Ответ:
а) \( \frac{1}{4} \)
б) \( \frac{3}{4} \)
в) \( \frac{3}{5} \)
г) \( \frac{2}{3} \)
д) \( \frac{1}{5} \)
е) \( \frac{4}{3} \)