Ratios
Lesson

Topic Index | Grade 5 Math | Intermediate Test Prep | StudyZone

A Ratio is the comparing of two quantities.

 

Ratios can be written 
3 different ways


A ratio of
3 boys to 5 girls
can look like:

3 to 5

3 : 5

Example 1:

If there were 7 hats and 3 shoes

The ratio would be---
                     
 7 to 3

it could also look like
7 : 3    or   

The number of HATS 
MUST BE
listed first

Example 2:

If there were 9 scarves and 2 gloves

The ratio would be---
                     
 9 : 2

it could also look like
9 to 2    or   

The number of SCARVES 
MUST BE
listed first

Example 3:

If 6 out of 10 kids like spaghetti

The ratio would be---
                     


it could also look like
6 to 10    or     6 : 10  

BUT:
like fractions, 
ratios can be 
reduced !

reduces to 

it could also look like
3 to 5    or     3 : 5  

The number of 
KIDS LIKING SPAGHETTI 
MUST BE
listed first

 

Upon further review:

RATIOS
compare 2 different amounts.

 ** Always list the amounts **
  in the order as they are listed 

Ex: 
5 cars to 2 trucks
MUST BE
5 : 2

(NOT--  2 : 5)

 Let's Practice!
or
NYS Test Prep Questions

         

 
Topic Index | Grade 5 Math | Intermediate Test Prep | StudyZone

Created by Ed Fayette
Updated by:
  Julie Burger and Carrie Plasse
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