Lesson 5 Compare and Order Decimals and Fractions
Let’s put fractions and decimals in order.
Warmup Number Talk: Sums of Fractions
Find the value of each expression mentally.
Activity 1 Order Once, Order Twice
Your teacher will give you a set of cards with fractions and decimals.
Work with your group to order the numbers from least to greatest. Record your ordered numbers.
Find a group whose cards are different than yours. Combine your cards with theirs. Order the combined set from least to greatest. Record your sorted numbers.
Use the numbers from your sorted set and <, >, or = symbols to create true comparison statements:
Activity 2 Long Jumps
American athlete Carl Lewis won 10 Olympic medals and 10 World Championships in track and field—in 100meter dash, 200meter dash, and long jump.
Here are some of his longjump records from his career:
year 
distance (meters) 

1979 

1980 

1982 

1983 

1984 

1987 

1991 
On this list, which distance is his shortest jump? Which is his best (longest) jump?
Here are the top distances (in meters) of three other American long jumpers:
Bob Beamon:
Jarrion Lawson:
Mike Powell:
Compare their records to Carl Lewis’s best jump. Order the distances from greatest to least.
Practice Problem
Problem 1
Order the numbers from least to greatest: