Answer: [tex] \frac{1}{2} [/tex]
Explanation:
[tex] \frac{5}{6} = \frac{1}{3} + D[/tex]
[tex] \frac{5}{6} - \frac{1}{3} = \frac{1}{3} - \frac{1}{3} + D[/tex]
[tex] \frac{5}{6} - \frac{1}{3} = D[/tex]
[tex]\frac{5}{6} - 2(\frac{1}{3}) = D[/tex]
[tex]\frac{5}{6} - \frac{2}{6} = D[/tex]
[tex]\frac{3}{6} = D[/tex] = [tex] \frac{1}{2} [/tex]
