5% de 80
4
1/2
50%
3/4
0.75
20% de 60
12
2/5
40%
0.4
35% de 25
8.75
75%
7/20
0.35
46% de 105
48.3
15/70
21.43%
9/25
0.36
53% de 62
32.86
16/22
72.73%
23/50
0.46