What are ratios and proportions?© BrainMass Inc. brainmass.com March 4, 2021, 5:36 pm ad1c9bdddf
Ratios are pairs of numbers that are used to make comparisons.
A ratio compares two numbers using a fraction. Ratios can be written with different notations:
2 to 3
all have the same meaning.
Putting two numbers in a ratio gives you a sense of the relative
sizes of two numbers. For instance to know the ratio of 200 to
100 you say it is 200/100 = 2. That means 200 is twice the size of 100.
The best way to explain this is by example:
If you have a pet store with 12 cats and 18 dogs, then the ratio of cats to dogs is 12/18 = 2/3, and the ratio of dogs to cats is 18/12 = 3/2. This is, there are 3 ...
This explains ratios and proportions.