[tex]\frac{2}{3} = \frac{4}{6} \\ \frac{1}{2} = \frac{3}{6} \\ \frac{1}{3} = \frac{2}{6} \\ the \: common \: difference \: is \: \frac{1}{6} \\ as \: all \: the \: continuing \: terms \\ are \: made \: by \: subtracting \: \frac{1}{6} \: from \\ the \: previous \: term. \\ the \: next \: three \: terms \: are \: \frac{1}{6} \: \: 0 \: and - \frac{1}{6} [/tex]
