Sam has a collection of stamps. For every 18 dinosaur stamps, he has 12 airplane stamps. Sam wrote a ratio for dinosaur stamps to airplane stamps as 12 to 18. Did he write his ratio correctly? Justify your answer. I NEED AN ANSWER

Answer:
Given the ratio for dinosaur stamps to airplane stamp, the correct ratio is 18 : 12
Step-by-step explanation:
Dinosaur stamps = 18
Airplane stamps = 12
John wrote:
ratio of dinosaur stamps to airplane stamps = 12 to 18
Correct ratio:
ratio of dinosaur stamps to airplane stamps = 18 : 12
= 18/12