1. Comparing and Ordering Fractions

2. Vocabulary
Least Common Denominator (LCD) – the least common multiple of the denominators of two or more fractions.

3. Cynthia and Mariana are kayaking down a river
Cynthia and Mariana are kayaking down a river. Cynthia kayaks a distance of 7/10 mile, and Mariana kayaks ¾ mile. Who kayaked the greater distance?

4. Steps for comparing two or more fractions.
Find the LCD of the fractions.
Use the LCD to write equivalent fractions.
Compare the numerators.

5. To find who kayaked the greater distance, you need to compare 7/10 and ¾. Steps: 1. 2. 3.

6. Ordering Fractions Using the LCD
Order the fractions 2/3, 3/8, 1/6, and ¾ from least to greatest.
Find the LCD of the fractions.
Use the LCD to write equivalent fractions.
Compare the numerators.

7. White Boards Copy and complete the statement using <, >, or =.
5/ /12
5/ /10
3/ /4

8. Order the fractions from least to greatest.
2/3, 5/6, ½, 1/6
9/14, 5/7, ¾, 5/28
5/48, ½, 1/6, 7/12