(1/3)9³ =

(1/3)9^3

3^3

9^2

27

Thanks Ang2061,

Good effort ang but not quite right    (I'll give you 3 points for your participation  )

$$\\(\frac{1}{3})9^3\\\\ =\frac{1}{\not{3}}\times \not{9}^3*9*9\\\\ =3*81\\\\ =243$$   

(1⁄3)9³

=(1⁄3)9×9×9

=(1⁄3)81×9

=(1⁄3)729

=729⁄3

=243⁄1

=243