Сокращение дробей

1. a) $$\frac{420}{1400} = \frac{42}{140} = \frac{21}{70} = \frac{3}{10}$$
2. б) $$\frac{2079}{1089} = \frac{189}{99} = \frac{21}{11}$$
3. в) $$\frac{312}{468} = \frac{156}{234} = \frac{78}{117} = \frac{26}{39} = \frac{2}{3}$$
4. г) $$\frac{2695}{4235} = \frac{539}{847} = \frac{77}{121} = \frac{7}{11}$$
5. д) $$\frac{312}{2079} = \frac{104}{693} = \frac{8}{53}$$
6. e) $$\frac{1400}{4235} = \frac{280}{847} = \frac{40}{121}$$