Answer:
[tex]\frac{2}{3}[/tex]
Step-by-step explanation:
The given ratio is [tex]\frac{18}{27}[/tex]
9 is the common factor of 18 and 27
divide numerator and denominator by 9
[tex]\frac{18/9}{27/9} =\frac{2}{3}[/tex]
hence [tex]\frac{2}{3}[/tex] is proportion with [tex]\frac{18}{27}[/tex]