Respostas

2013-10-22T16:51:53-02:00
A- 54/100 = 27/50
b- 32/100 = 16/50 = 8/25
c- 45/100 = 9/20
d- 70/100 = 35/50 = 7/10
e- 60/100 = 30/50= 6/10= 3/5
f- 125/100 = 25/20= 5/4
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