Odpowiedź:
2/6 = 4/12
1/3 = 8/22/10 = 6/30
21/9 = 42/18
6/5 = 30/25
11/3 = 33/9
7/10 = 280/400
3/4 = 45/60
5/18 = 15/54
1/13 = 1/13
74/25 = 148/50
1/4 = 4/16
