We need to convert both quantities to the same units before we can compare them.
24 ounces is equal to 1.5 pounds (since there are 16 ounces in 1 pound).
So the ratio of 24 ounces to 12 pounds can be written as:
1.5 pounds : 12 pounds
Simplifying this ratio by dividing both sides by 12, we get:
0.125 : 1
Therefore, the ratio that compares the relative sizes of 24 ounces to 12 pounds is 0.125 : 1.