Respuesta:
0.075 = [tex]\frac{75 }{10000} = \frac{ 3 \cdot 25 }{400 \cdot25} = \frac {3 }{400}[/tex]
3.9 = [tex]3 \frac{9 }{10}[/tex]
8.45 = [tex]8 \frac {45 }{1000} = 8 \frac{ 9\cdot 5 }{200 \cdot5} = 8 \frac {9 }{200}[/tex]
0.000849 = [tex]\frac{849 }{10000000}[/tex]
