Respuestas

2014-01-31T22:29:29+01:00
5/3 + 4/3 = 9/3
6/12 + 75/12 = 81/12
412/8 + 586/8 = 998/8
465/74 + 13/74 = 478/74
158/8 + 53/8 = 211/8