Ms. Garcia Math
	Ratio	Show/Hide
	A comparison of two things.
	Suppose there are 5 pets, 3 dogs and 2 cats
	The ratio of dogs to cats is 3 to 2.
	It has 3 forms: 3 to 2 3/2 3:2	All three ratios mean that there are 3 dogs and 2 cats.
	This order is important, and must be respected A ratio of 3:2 is not the same as a ratio of 2:3
	Ratio notations	Show/Hide
	Ratios can be expressed in several ways: fraction, decimal, percent, or written with "to" When expressing a ratio, we can use a colon ":" in place of the word "to"
	There are 5 pets (3 dogs and 2 cats)
	What is the ratio of dogs to the total number of pets?
	3/5 are dogs (2/5 are cats)
	0.60 are dogs (divide 3 by 5)
	60% are dogs (change 0.60 to a percent)
	Example	Show/Hide
	The ratio of dogs to cats in one small neighborhood is 3 to 2. If there are 8 cats, how many dogs are there?
	There are three dogs to every two cats. This is expressed as a ratio 3:2. If there are 8 cats, then the number of dogs is 3/2 = X/8. X=8*3/2 = 12