Resposta :
Resposta:
[tex]A)-0,9=\frac{-9}{10}[/tex]
[tex]B)1,8=\frac{18}{10} : \frac{2}{2} =\frac{9}{5}[/tex]
[tex]C)- 0,004= \frac{40}{-1000} :\frac{4}{4} =\frac{1}{-250}[/tex]
[tex]D)0,5=\frac{5}{10} :\frac{5}{5} =\frac{1}{2}[/tex]
Resposta:
[tex]A)-0,9=\frac{-9}{10}[/tex]
[tex]B)1,8=\frac{18}{10} : \frac{2}{2} =\frac{9}{5}[/tex]
[tex]C)- 0,004= \frac{40}{-1000} :\frac{4}{4} =\frac{1}{-250}[/tex]
[tex]D)0,5=\frac{5}{10} :\frac{5}{5} =\frac{1}{2}[/tex]