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# 8-11 Dividing Fractions

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• ### 8-11 Dividing Fractions

1. 1. 8-11 Dividing Fractions Number Sense 2.4
2. 2. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one
3. 3. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 2
4. 4. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 2 1
5. 5. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 = 2 2 1 2
6. 6. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 = 2 = 2 1 2 1
7. 7. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 = 2 = 2 1 2 1 The reciprocal is usually the “ﬂip” of the fraction.
8. 8. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 = 2 = 2 1 2 1 1 The reciprocal is usually 2 the “ﬂip” of the fraction.
9. 9. Deﬁnition: Reciprocal a mathematical expression or function so related to another that their product is one 1 x 2 = 2 = 2 1 2 1 2 The reciprocal is usually 1 the “ﬂip” of the fraction.
10. 10. Skill: Finding the Reciprocal 1 3 12 2 4 15 7 4 70 9 5 100
11. 11. Skill: Finding the Reciprocal 1 3 12 2 4 15 The reciprocal is usually the “ﬂip” of the fraction. 7 4 70 9 5 100
12. 12. Skill: Finding the Reciprocal 2 3 12 1 4 15 The reciprocal is usually the “ﬂip” of the fraction. 7 4 70 9 5 100
13. 13. Skill: Finding the Reciprocal 2 4 12 1 3 15 The reciprocal is usually the “ﬂip” of the fraction. 7 4 70 9 5 100
14. 14. Skill: Finding the Reciprocal 2 4 15 1 3 12 The reciprocal is usually the “ﬂip” of the fraction. 7 4 70 9 5 100
15. 15. Skill: Finding the Reciprocal 2 4 15 1 3 12 The reciprocal is usually the “ﬂip” of the fraction. 9 4 70 7 5 100
16. 16. Skill: Finding the Reciprocal 2 4 15 1 3 12 The reciprocal is usually the “ﬂip” of the fraction. 9 5 70 7 4 100
17. 17. Skill: Finding the Reciprocal 2 4 15 1 3 12 The reciprocal is usually the “ﬂip” of the fraction. 9 5 100 7 4 70
18. 18. Example 1 3 ÷ 1 = 7 2
19. 19. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 ÷ 1 = 7 2
20. 20. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 ÷ 2 = 7 1
21. 21. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 ÷ 2 = 7 1 STEP TWO: Multiply instead of divide.
22. 22. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 x 2 = 7 1 STEP TWO: Multiply instead of divide.
23. 23. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 x 2 = 7 1 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
24. 24. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 x 2 = 6 7 1 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
25. 25. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 x 2 = 6 7 1 7 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
26. 26. Example 1 STEP ONE: Find the reciprocal of the divisor. 3 x 2 = 6 7 1 7 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators. STEP FOUR: Simplify your answer if necessary.
27. 27. Example 2 6 ÷ 3 = 1 4
28. 28. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 ÷ 3 = 1 4
29. 29. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 ÷ 4 = 1 3
30. 30. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 ÷ 4 = 1 3 STEP TWO: Multiply instead of divide.
31. 31. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 1 3 STEP TWO: Multiply instead of divide.
32. 32. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 1 3 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
33. 33. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 24 1 3 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
34. 34. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 24 1 3 3 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators.
35. 35. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 24 1 3 3 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators. STEP FOUR: Change the improper fraction into a mixed #.
36. 36. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 24 1 3 3 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators. STEP FOUR: Change the improper fraction into a mixed #.
37. 37. Example 2 STEP ONE: Find the reciprocal of the divisor. 8 6 x 4 = 24 3 24 1 3 3 24 0 STEP TWO: Multiply instead of divide. STEP THREE: Multiply the numerators and the denominators. STEP FOUR: Change the improper fraction into a mixed #.
38. 38. Example 2 STEP ONE: Find the reciprocal of the divisor. 6 x 4 = 24 1 3 3 STEP TWO: Multiply instead of divide. 8 STEP THREE: Multiply the numerators and the denominators. STEP FOUR: Change the improper fraction into a mixed #.