Respostas

2014-05-08T17:48:22-03:00
Da seguinte forma

\boxed{40\%~*~30\%~\to~ \frac{40}{100}* \frac{30}{100}  ~\to~ \frac{2}{5} * \frac{3}{10} = \frac{6}{50} ~\to~ \frac{3}{25} }

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