273. Сократите дроби:

a)

• $$rac{4}{10} = \frac{2 \times 2}{2 \times 5} = \frac{2}{5}$$
• $$rac{8}{12} = \frac{4 \times 2}{4 \times 3} = \frac{2}{3}$$
• $$rac{6}{9} = \frac{3 \times 2}{3 \times 3} = \frac{2}{3}$$
• $$rac{9}{12} = \frac{3 \times 3}{3 \times 4} = \frac{3}{4}$$

б)

• $$rac{2}{8} = \frac{2 \times 1}{2 \times 4} = \frac{1}{4}$$
• $$rac{3}{12} = \frac{3 \times 1}{3 \times 4} = \frac{1}{4}$$
• $$rac{10}{2} = \frac{2 \times 5}{2 \times 1} = 5$$
• $$rac{6}{30} = \frac{6 \times 1}{6 \times 5} = \frac{1}{5}$$

в)

• $$rac{15}{60} = \frac{15 \times 1}{15 \times 4} = \frac{1}{4}$$
• $$rac{88}{33} = \frac{11 \times 8}{11 \times 3} = \frac{8}{3}$$
• $$rac{2}{100} = \frac{2 \times 1}{2 \times 50} = \frac{1}{50}$$
• $$rac{50}{100} = \frac{50 \times 1}{50 \times 2} = \frac{1}{2}$$