Respostas

2014-08-11T19:41:40-03:00
4/6 : 2 = 2/3
14/35 :7 = 2/5
40/64 : 8 = 5/8
60/72 : 4 =  15/18 :3 = 5/6
80/96 :8 = 10/12 : 2 = 5/6
39/91 já é irredutivel