1. Everyday Math Grade 4 – Lesson 7.4 Adding and Subtracting Fractions Copyright © 2012 Kelly Mott

2. ADDING LIKE FRACTIONS Copyright © 2012 Kelly Mott

3. Adding with Like Denominators When you add fractions with like denominators, we keep the same denominator, and just add the top numerator. 1 2 4 4 += Copyright © 2012 Kelly Mott

4. Practice 1: 4 1 6 6 2 1 3 3 + = + = Copyright © 2012 Kelly Mott

5. Practice 2: 2 5 10 10 3 4 8 8 + = + = Copyright © 2012 Kelly Mott

6. Practice 3: 2 5 9 9 2 3 5 5 + = + = Copyright © 2012 Kelly Mott

7. SUBTRACTING LIKE FRACTIONS Copyright © 2012 Kelly Mott

8. Subtracting with Like Denominators When you subtract fractions with like denominators, keep the bottom (denominator) the same and subtract the top (numerator). 5 2 6 6 - = Copyright © 2012 Kelly Mott

9. Practice 1: 9 2 9 9 5 3 6 6 = = -- Copyright © 2012 Kelly Mott

10. Practice 2: 4 2 5 5 3 1 3 3 = = -- Copyright © 2012 Kelly Mott

11. Practice 3: 4 2 4 4 7 5 8 8 = = -- Copyright © 2012 Kelly Mott

12. WORD PROBLEMS Copyright © 2012 Kelly Mott

13. 1. Marcel used 1/4 cup of sugar to make bread and 3/4 cup of sugar to make muffins. How much sugar did he use in all? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

14. 2. Ellen made tuna, egg, and ham sandwiches. If 5/8 are tuna sandwiches, and 2/8 are egg, how many are ham sandwiches? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

15. 3. There are 18 players to make 3 equal teams. How many people will be on each team? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

16. 4. Mosi bought a notebook for $3.65, a pen for $1.37, and some paper for $2.81. How much did he spend? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

17. 5. Mike walked 3/16 mile to one store and 4/16 mile to another store. How far did he walk altogether? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

18. 6. Kim lives between Rick and Peter. She lives 3/8 mile from Rick and 2/8 mile from Peter. How far does Rick live from Peter? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

19. ADDING UNLIKE FRACTIONS Copyright © 2012 Kelly Mott

20. Adding Unlike Fractions When you add fractions with different denominators, you have to make the denominators the same. Look for the least common factor and multiply. 1 1 2 4 += Copyright © 2012 Kelly Mott

21. Practice 1: 4 3 10 5 d + = Copyright © 2012 Kelly Mott

22. Practice 2: 5 1 9 3 d + = Copyright © 2012 Kelly Mott

23. Practice 3: 1 3 8 4 d + = Copyright © 2012 Kelly Mott

24. Practice 4: 3 2 6 12 d + = Copyright © 2012 Kelly Mott

25. Practice 5: 5 2 12 4 d + = Copyright © 2012 Kelly Mott

26. Practice 6: 3 2 5 10 d + = Copyright © 2012 Kelly Mott

27. Practice 7: 2 3 4 8 d + = Copyright © 2012 Kelly Mott

28. Practice 8: 5 1 15 5 d + = Copyright © 2012 Kelly Mott

29. Practice 9: 1 2 3 6 d + = Copyright © 2012 Kelly Mott

30. Practice 10: 6 1 15 5 d + = Copyright © 2012 Kelly Mott

32. Practice 1: 2 3 3 5 d + = Copyright © 2012 Kelly Mott

33. Practice 2: 1 3 2 7 d + = Copyright © 2012 Kelly Mott

34. Practice 3: 1 2 3 4 d + = Copyright © 2012 Kelly Mott

35. Practice 4: 3 1 8 3 d + = Copyright © 2012 Kelly Mott

36. Practice 5: 4 1 8 5 d + = Copyright © 2012 Kelly Mott

37. Practice 6: 4 1 9 2 d + = Copyright © 2012 Kelly Mott

38. 1. Sandy walked ½ mile to the pet store and 4/10 mile to the crafts store. How far did she walk? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott

39. SUBTRACTING UNLIKE FRACTIONS Copyright © 2012 Kelly Mott

40. Subtracting Unlike Fractions When you subtract fractions with different denominators, you have to make the denominators the same. Look for the least common factor and multiply. 1 1 2 4 -= Copyright © 2012 Kelly Mott

41. Practice 1: 2 3 3 6 d - = Copyright © 2012 Kelly Mott

42. Practice 2: 3 3 4 8 d - = Copyright © 2012 Kelly Mott

43. Practice 3: 7 2 8 4 d - = Copyright © 2012 Kelly Mott

44. Practice 4: 11 1 12 6 d - = Copyright © 2012 Kelly Mott

45. Practice 5: 5 2 6 3 d - = Copyright © 2012 Kelly Mott

46. Practice 6: 3 3 4 12 d - = Copyright © 2012 Kelly Mott

47. Practice 7: 6 1 10 2 d - = Copyright © 2012 Kelly Mott

48. Practice 8: 1 1 2 6 d - = Copyright © 2012 Kelly Mott

49. Practice 9: 2 4 3 9 d - = Copyright © 2012 Kelly Mott

50. Practice 10: 8 3 10 5 d - = Copyright © 2012 Kelly Mott

52. Practice 1: 2 3 3 5 d - = Copyright © 2012 Kelly Mott

53. Practice 2: 1 3 2 7 d - = Copyright © 2012 Kelly Mott

54. Practice 3: 2 1 4 3 d - = Copyright © 2012 Kelly Mott

55. Practice 4: 5 1 8 3 d - = Copyright © 2012 Kelly Mott

56. Practice 5: 4 1 8 5 d - = Copyright © 2012 Kelly Mott

57. Practice 6: 7 1 9 2 d - = Copyright © 2012 Kelly Mott

58. 1. Flo swam ½ mile in the morning. She swam ¾ mile in the evening. How much farther did she swim in the evening? Question:Steps: Solve:Answer in Words: Copyright © 2012 Kelly Mott