Instructions: Solve each problem below. Show your work and simplify your answers as much as possible.

1. What is the LCD of 3 and 4?

2. Find the LCD of 2/3 and 5/6.

3. Add 1/4 and 2/3.

4. Subtract 3/8 from 5/6.

5. Find the sum of 3/5, 1/10, and 7/20.

6. Find the difference between 2/3 and 3/4.

7. Add 2/5 and 3/8.

8. Subtract 5/6 from 7/12.

9. Find the sum of 1/3, 2/5, and 4/15.

10. Find the difference between 5/6 and 1/2.

11. Add 7/15 and 4/9.

12. Subtract 1/3 from 5/12.

13. Find the sum of 1/2, 1/3, and 1/4.

14. Find the difference between 3/4 and 2/5.

15. Add 3/10 and 2/7.

16. Subtract 1/5 from 3/8.

17. Find the sum of 1/6, 1/8, and 3/16.

18. Find the difference between 4/5 and 3/4.

19. Add 5/6 and 1/3.

20. Subtract 3/4 from 5/8.

21. Find the sum of 2/9, 1/12, and 5/18.

22. Find the difference between 7/8 and 2/3.

23. Add 1/7 and 2/9.

24. Subtract 2/3 from 7/10.

25. Find the sum of 3/8, 1/5, and 2/10.

26. Find the difference between 5/6 and 2/3.

27. Add 1/3 and 1/4.

28. Subtract 5/6 from 3/4.

29. Find the sum of 2/5, 1/6, and 3/10.

30. Find the difference between 4/5 and 1/2.

31. Add 5/8 and 3/10.

32. Subtract 1/4 from 2/3.

33. Find the sum of 1/2, 1/3, and 1/6.

34. Find the difference between 3/4 and 1/2.

35. Add 1/5 and 2/7.

36. Subtract 3/8 from 5/6.

37. Find the sum of 2/3, 1/4, and 1/8.

38. Find the difference between 7/8 and 3/4.

39. Add 5/6 and 1/4.

40. Subtract 2/3 from 3/4.

41. Find the sum of 1/3, 1/6, and 1/9.

42. Find the difference between 5/6 and 1/3.

43. Add 3/7 and 2/9.

44. Subtract 1/2 from 4/5.

45. Find the sum of 5/8, 1/4, and 3/16.

46. Find the difference between 3/5 and 2/3.

47. Add 1/2 and 1/3.

48. Subtract 5/6 from 4/5.

49. Find the sum of 2/5, 1/10, and 1/20.

50. Find the difference between 7/8 and 5/6.