Resposta:
a)
[tex] \frac{10}{5} = \frac{2}{1} [/tex]
b)
[tex] \frac{7}{14} = \frac{1}{2} [/tex]
c)
[tex] \frac{9}{9} = \frac{1}{1} [/tex]
d)
[tex] \frac{12}{6} = \frac{2}{1} [/tex]
