1. Copyright Scott Storla 2015 Adding and Subtracting Fractions

2. Copyright Scott Storla 2015 You can only add and subtract Like Terms Terms are like if they count the same unit.

3. Copyright Scott Storla 2015 For fractions we divide a unit of distance 1 into pieces and the distance of one of those pieces becomes the new unit. 0 1 0 1 0

4. Copyright Scott Storla 2015 The denominator tells us the size of the unit.

5. Copyright Scott Storla 2015 See 70 in class activities for chapter 1

6. Copyright Scott Storla 2015 Simplify

7. Copyright Scott Storla 2015 Simplify

8. Preparing to Add and Subtract Fractions with Unlike Denominators Copyright Scott Storla 2015

9. 01 01 01 ?

10. 01 01 01 ? 0

11. 01 01 01

12. Knowing to divide the number line into sixths LCD Rewriting one-third as two-sixths and one-half as three-sixths Equivalent Fractions

13. Copyright Scott Storla 2015 Find the LCD

14. Copyright Scott Storla 2015 Find the LCD

15. Copyright Scott Storla 2015 Find the LCD

16. Copyright Scott Storla 2015 Find the LCD

17. Copyright Scott Storla 2015 Building Equivalent Fractions

18. Building equivalent fractions Copyright Scott Storla 2015

20. Rewrite the factor of 1 so the product is an equivalent fraction with the new denominator.

21. Copyright Scott Storla 2015 Rewrite the factor of 1 so the product is an equivalent fraction with the new denominator.

22. Copyright Scott Storla 2015 Rewrite the factor of 1 so the product is an equivalent fraction with the new denominator.

23. Copyright Scott Storla 2015 Rewrite the factor of 1 so the product is an equivalent fraction with the new denominator.

24. Copyright Scott Storla 2015 Building Equivalent Fractions

25. Copyright Scott Storla 2015 Combining LCD and Equivalent Fractions

26. Copyright Scott Storla 2015 Find the LCD and build equivalent fractions

27. Copyright Scott Storla 2015 Find the LCD and build equivalent fractions

28. Copyright Scott Storla 2015 Find the LCD and build equivalent fractions

29. Copyright Scott Storla 2015 Find the LCD and build equivalent fractions

30. Copyright Scott Storla 2015 Combining LCD and Equivalent Fractions

31. Adding and Subtracting Fractions with Unlike Denominators Copyright Scott Storla 2015

32. Adding and Subtracting Unlike Fractions (They don’t have a common denominator) Copyright Scott Storla 2015

33. Simplify

34. Copyright Scott Storla 2015 Simplify

35. Copyright Scott Storla 2015 Simplify

36. Copyright Scott Storla 2015 Simplify

37. Copyright Scott Storla 2015 Simplify

38. Copyright Scott Storla 2015 Simplify

39. Copyright Scott Storla 2015 Adding and Subtracting Fractions

40. Copyright Scott Storla 2015 Simplify

41. Copyright Scott Storla 2015 Fractions