Respuestas

2013-08-12T01:59:40+02:00
1/2= 2/4= 4/8= 8/16= 16/32= 32/64= 64/128= 128/156=
2013-08-12T02:00:35+02:00
1/2 = 2/4 = 3/6 = 4/8 = 5/10 = 6/12= 7/14 = 8/16