Odpowiedzi

2010-03-09T19:27:20+01:00
1/2=36/72
1/3=36/108
2/5=36/90
4/6=36/54
9/15=36/60
9/20=36/80
9/10=36/40
3/12=36/144
6/15=36/90
12/30=36/90
17 4 17