Respuesta :

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]