Answer:
A
Step-by-step explanation
[tex]1 \frac{2}{3} = \frac{3}{2}[/tex] But you need a base of 6 so you have to multiply by 3 to get [tex]\frac{9}{6}[/tex] then subtract it.[tex]\frac{9}{6} -\frac{5}{6} = \frac{4}{6}[/tex] which could be simplified to [tex]\frac{2}{3}[/tex] if you divide by 2
