1. 7-8 Fractions in Simplest
Form
Number Sense 1.5

2. Review:

3. Review:
GCF - greatest common factor

4. Review:
GCF - greatest common factor
Find the GCF of 18 and 27

5. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18:

6. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18:
27:

7. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18: 1,2,3,6,9,18
27:

8. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18: 1,2,3,6,9,18
27: 1,3,9,27

9. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18: 1,2,3,6,9,18
27: 1,3,9,27

10. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18: 1,2,3,6,9,18
27: 1,3,9,27

11. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
18: 1,2,3,6,9,18
27: 1,3,9,27

12. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
Which is the
18: 1,2,3,6,9,18 greatest
between
27: 1,3,9,27 1,3,9 ?

13. Review:
GCF - greatest common factor
Find the GCF of 18 and 27
Which is the
18: 1,2,3,6,9,18 greatest
between
27: 1,3,9,27 1,3,9 ?
GCF is 9

14. 12
Write 18
in simplest form.

15. 12
Write 18
in simplest form.
STEP ONE: Find GCF of
12 and 18

16. 12
Write 18
in simplest form.
STEP ONE: Find GCF of
12 and 18
STEP TWO: Divide
numerator and
denominator by GCF

17. 12
Write 18
in simplest form.

18. 12
Write 18
in simplest form.
12:

19. 12
Write 18
in simplest form.
12:
18:

20. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18:

21. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18: 1,2,3,6,9,18

22. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18: 1,2,3,6,9,18

23. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18: 1,2,3,6,9,18

24. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18: 1,2,3,6,9,18

25. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
18: 1,2,3,6,9,18

26. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18

27. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18
12
18

28. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18
12 ÷
18 ÷

29. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18
12 ÷ 6
18 ÷ 6

30. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18
12 ÷ 6 =
18 ÷ 6 =

31. 12
Write 18
in simplest form.
12: 1,2,3,4,6,12
GCF = 6
18: 1,2,3,6,9,18
simpl
est for m
12 ÷ 6 = 2 !
18 ÷ 6 = 3

32. 8
Write 20
in simplest form.

33. 8
Write 20
in simplest form.
8:

34. 8
Write 20
in simplest form.
8:
20:

35. 8
Write 20
in simplest form.
8: 1,2,4,8
20:

36. 8
Write 20
in simplest form.
8: 1,2,4,8
20: 1,2,4,5,10,20

37. 8
Write 20
in simplest form.
8: 1,2,4,8
20: 1,2,4,5,10,20

38. 8
Write 20
in simplest form.
8: 1,2,4,8
20: 1,2,4,5,10,20

39. 8
Write 20
in simplest form.
8: 1,2,4,8
20: 1,2,4,5,10,20

40. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20

41. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20
8
20

42. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20
8 ÷
20 ÷

43. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20
8 ÷ 4
20 ÷ 4

44. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20
8 ÷ 4 =
20 ÷ 4 =

45. 8
Write 20
in simplest form.
8: 1,2,4,8
GCF = 4
20: 1,2,4,5,10,20
simpl
est for m
8 ÷ 4 = 2 !
20 ÷ 4 = 5