Respostas

2014-08-27T22:45:52-03:00
2014-08-27T23:21:04-03:00
\frac{15d}{1a}= \frac{15d}{365d}= 0,04 ou  \frac{3}{73}  \\\\ \frac{1Kg}{800g}= \frac{1000g}{800g}=1,25ou \frac{5}{4}  \\\\\frac{21d}{1m} = \frac{21d}{30d} =0,7ou \frac{7}{10} \\\\ \frac{40min}{2h}= \frac{40min}{120min}=0,33ou \frac{1}{3}  \\\\ \frac{900m}{1km}= \frac{900m}{1000m} =0,9ou \frac{9}{10}  :.
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