Respostas

2013-08-08T18:26:19-03:00
A) 15/60 = 3/12 = 1/4 da hora
b) 30/60 = 1/2 da hora
c) 10/60 = 1/6 da hora
d) 45/60 = 9/12 = 3/4 da hora
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