Respostas

2014-03-18T17:14:56-03:00
5/6 dividido 3/10 = 
5/6 vezes 10/3 = 
50/18 = 
2,78
2 1 2
2014-03-18T17:21:11-03:00
5/6=0,8333...
0,83*30=25
R=25
1 3 1