Сократите дроби: 4 a) 22 125 75 24 125 100 198 66' 75'100'360' 1000'250' 126 б) 42 75 40 3 18 45 120 720'300' 64' 243'300'900' 180

a)

1. $$\frac{22}{66} = \frac{22:22}{66:22} = \frac{1}{3}$$
2. $$\frac{125}{75} = \frac{125:25}{75:25} = \frac{5}{3}$$
3. $$\frac{75}{100} = \frac{75:25}{100:25} = \frac{3}{4}$$
4. $$\frac{24}{360} = \frac{24:12}{360:12} = \frac{2}{30} = \frac{2:2}{30:2} = \frac{1}{15}$$
5. $$\frac{125}{1000} = \frac{125:125}{1000:125} = \frac{1}{8}$$
6. $$\frac{100}{250} = \frac{100:50}{250:50} = \frac{2}{5}$$
7. $$\frac{198}{126} = \frac{198:18}{126:18} = \frac{11}{7}$$

б)

1. $$\frac{42}{720} = \frac{42:6}{720:6} = \frac{7}{120}$$
2. $$\frac{75}{300} = \frac{75:75}{300:75} = \frac{1}{4}$$
3. $$\frac{40}{64} = \frac{40:8}{64:8} = \frac{5}{8}$$
4. $$\frac{3}{243} = \frac{3:3}{243:3} = \frac{1}{81}$$
5. $$\frac{18}{300} = \frac{18:6}{300:6} = \frac{3}{50}$$
6. $$\frac{45}{900} = \frac{45:45}{900:45} = \frac{1}{20}$$
7. $$\frac{120}{180} = \frac{120:60}{180:60} = \frac{2}{3}$$

Ответ: дроби сокращены