Сократите дроби

Сократим дроби: a) $\frac{33}{99} = \frac{33 \div 33}{99 \div 33} = \frac{1}{3}$ $\frac{150}{125} = \frac{150 \div 25}{125 \div 25} = \frac{6}{5} = 1\frac{1}{5}$ $\frac{25}{100} = \frac{25 \div 25}{100 \div 25} = \frac{1}{4}$ $\frac{14}{210} = \frac{14 \div 14}{210 \div 14} = \frac{1}{15}$ $\frac{150}{1000} = \frac{150 \div 50}{1000 \div 50} = \frac{3}{20}$ $\frac{1000}{2500} = \frac{1000 \div 500}{2500 \div 500} = \frac{2}{5}$ $\frac{264}{148} = \frac{264 \div 4}{148 \div 4} = \frac{66}{37} = 1\frac{29}{37}$ b) $\frac{45}{630} = \frac{45 \div 45}{630 \div 45} = \frac{1}{14}$ $\frac{30}{64} = \frac{30 \div 2}{64 \div 2} = \frac{15}{32}$ $\frac{125}{500} = \frac{125 \div 125}{500 \div 125} = \frac{1}{4}$ $\frac{7}{217} = \frac{7 \div 7}{217 \div 7} = \frac{1}{31}$ $\frac{12}{600} = \frac{12 \div 12}{600 \div 12} = \frac{1}{50}$ $\frac{75}{300} = \frac{75 \div 75}{300 \div 75} = \frac{1}{4}$ $\frac{140}{210} = \frac{140 \div 70}{210 \div 70} = \frac{2}{3}$