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)

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 Topic Index | Grade 5 Math | Intermediate Test Prep | StudyZone Created by Ed Fayette Updated by:  Julie Burger and Carrie Plasse Copyright © 2001-06 Oswego City School District