Answer:
[tex]\frac{1}{81}[/tex]
Step-by-step explanation:
[tex]\frac{1}{3}[/tex] × [tex]\frac{1}{3}[/tex] × [tex]\frac{1}{3}[/tex] × [tex]\frac{1}{3}[/tex]
1 × 1 × 1 × 1 = 1
3 × 3 × 3 × 3 = 81
