1. Fraction Addition

2. ¾ + ¾ Count the pieces

3. Try some 4 / 5 + 3 / 5

4. Compare

5. Try some

6. Apples and Oranges The things you add have to be the same size

7. Common Denominator

8. A number all original denominators divide into evenly 12 is a common denominator because 3 and 4 both divide 12 evenly.

9. Least Common Denominator To find the least common denominator –Write the times table list for each denominator –The smallest number that is in all rows is the least common denominator

10. Least Common Denominator To find the least common denominator –Write the times table list for each denominator –The smallest number that is in all rows is the least common denominator

12. Try One Find the common denominator for these fractions A) 2 / 3 + 3 / 5 B) ¾ + 7 / 12 C) 2 / 5 + 3 / 8 + 7 / 10

13. Addition

14. Find a common denominator Raise to the denominator Add Simplify

15. Addition Find a common denominator Raise to the denominator Add Simplify

16. Addition Find a common denominator Raise to the denominator Add Simplify

17. Try one

19. TRANSITIONAL PAGE

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