Odpowiedzi

2010-02-17T15:49:31+01:00
4/7 = 36/63 5/8 = 40/64 7/12 = 42/72 6/13= 36/78
2 3 2
2010-02-17T15:54:03+01:00
4/7=24/42
5/8=25/40
7/12=21/36
6/13=18/39
2 3 2