Ответ:
Ответ:
5. а) \( \frac{15}{60} \times 100\% = \frac{1}{4} \times 100\% = 25\% \)
б) \( \frac{2,5}{10} \times 100\% = \frac{25}{100} \times 100\% = 25\% \)
6. а) \( 1 \frac{1}{4} \div \frac{5}{8} = \frac{5}{4} \div \frac{5}{8} = \frac{5}{4} \times \frac{8}{5} = \frac{40}{20} = 2 \). \( 2 \times 100\% = 200\% \)
б) \( \frac{1,25}{0,25} \times 100\% = \frac{125}{25} \times 100\% = 5 \times 100\% = 500\% \)
7. а) \( 1 \frac{1}{3} \div 5 \frac{1}{3} = \frac{4}{3} \div \frac{16}{3} = \frac{4}{3} \times \frac{3}{16} = \frac{12}{48} = \frac{1}{4} \). \( \frac{1}{4} \times 100\% = 25\% \)
б) \( \frac{1}{0,008} \times 100\% = \frac{1000}{8} \times 100\% = 125 \times 100\% = 12500\% \)
8. а) \( 8 \div 5 \frac{1}{3} = 8 \div \frac{16}{3} = 8 \times \frac{3}{16} = \frac{24}{16} = \frac{3}{2} = 1,5 \). \( 1,5 \times 100\% = 150\% \)
б) \( \frac{0,16}{0,8} \times 100\% = \frac{16}{80} \times 100\% = \frac{1}{5} \times 100\% = 20\% \)
