Lets start with 0. Since the interval should be [tex]\frac{1}{8} ,[/tex] the next fraction is [tex]0 + \frac{1}{8} = \frac{1}{8}[/tex]
Likewise, the other fractions are:
[tex]\frac{2}{8}, \frac{3}{8}, \frac{4}{8}, \frac{5}{8}, \frac{6}{8} and \frac{7}{8}[/tex]