1. Click the mouse button or press the Space Bar to display the answers.
Transparency 2

2. Splash Screen

3. Add and subtract fractions
Objective
Add and subtract fractions
Example 2-5c

4. The least common multiple of the denominators of two or more fractions
Review Vocabulary
LCD
The least common multiple of the denominators of two or more fractions
Example 2-5c

5. Example 1 Add and Subtract Like Fractions
Example 3 Add and Subtract Unlike Fractions
Example 4 Add and Subtract Unlike Fractions
Lesson 2 Contents

6. Find Write in simplest form.
Write problem
Write the numerators over the same denominator
Add numerators
Keep denominator
Answer:
1/4
Example 2-1a

7. Find
Answer:
1/4
Example 2-1b

8. Find Write in simplest form.
Write the problem
Write the numerators over the same denominator
Subtract numerators
Find GCF and simplify
Answer:
2/4
Example 2-2a

9. Find
Answer:
2/4
Example 2-2b

10. Find Write in simplest form.
Write the problem
Use calculator to solve problem
Answer:
3/4
Example 2-3a

11. Find Write in simplest form.
Answer:
3/4
Example 2-3c

12. Find Write in simplest form.
Write the problem
Use calculator to solve problem
Answer:
4/4
Example 2-4a

13. Find Write in simplest form.
Answer:
4/4
Example 2-4c

14. Adding and Subtracting Fractions
Assignment
Lesson 6:2
Adding and Subtracting Fractions
All
End of Lesson 2

15. Decide what to do and write problem
ART A picture is mounted on art board that is inch thick. The frame selected for the picture is inch thick. The thickness of the picture is so small that it can be ignored. What thickness of cardboard is needed to hold the picture in place?
Decide what to do and write problem
5/5
Example 2-5a

16. Find least common denominator
LCD = 8 x
Write proportion and make equivalent fractions = 8
Subtract the numerators.
Keep denominator
Answer: The thickness of the cardboard needed to hold the picture in place is inch.
5/5
Example 2-5b

17. *
WEATHER Over the weekend inch of rain fell on Saturday and inch of rain fell on Sunday. What was the total rainfall for the weekend?
Answer:
5/5
Example 2-5c