Answer:
1 : [tex]\frac{2}{3}[/tex]
Step-by-step explanation:
Given the ratio
9 : 6 ← divide both parts of the ratio by 9
= [tex]\frac{9}{9}[/tex] : [tex]\frac{6}{9}[/tex] ← simplify
= 1 : [tex]\frac{2}{3}[/tex]