Answer:
unknown number is [tex]\frac{1}{9}[/tex]
Step-by-step explanation:
let x = unknown number
Therefore, [tex]\frac{1}{3} x=\frac{1}{27}[/tex]
Multiply both sides by 27: [tex]9x=1[/tex]
Divide both sides by 9: [tex]x=\frac{1}{9}[/tex]