by 
Anonymous
ANSWERS: 1
-
A proportion is a relation between two amounts which can be expressed as a ratio or a fraction. In the commercial "4 out of 5 dentists prefer [product]", the "4 out of 5" is a proportion. As a ratio, this would be 4:5; as a fraction, 4/5. If you had a proportion like 25:100, you could reduce it by diving by 25 on both sides of the : sign.
RELATED QUESTIONS
Copyright 2023, Wired Ivy, LLC