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 #.

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