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MathsAges 7-9

Simplifying fractions

Divide numerator and denominator by their highest common factor to write a fraction in simplest form. Review suitability for your learners before teaching.

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Age band:Ages 7-9Ages 10-12

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Worksheet StudioPractice pack · Ages 7-9

Simplifying fractions

Take your time. Show your thinking.

  1. 1. Simplify the fraction 8/24 to its lowest terms.

    8 · 24 · Simplifying fractions

  2. 2. Simplify the fraction 12/36 to its lowest terms.

    12 · 36 · Simplifying fractions

  3. 3. Simplify the fraction 5/20 to its lowest terms.

    5 · 20 · Simplifying fractions

  4. 4. Simplify the fraction 24/30 to its lowest terms.

    24 · 30 · Simplifying fractions

  5. 5. Simplify the fraction 70/80 to its lowest terms.

    70 · 80 · Simplifying fractions

  6. 6. Simplify the fraction 35/40 to its lowest terms.

    35 · 40 · Simplifying fractions

  7. 7. Simplify the fraction 18/48 to its lowest terms.

    18 · 48 · Simplifying fractions

  8. 8. Simplify the fraction 36/48 to its lowest terms.

    36 · 48 · Simplifying fractions

  9. 9. Simplify the fraction 22/55 to its lowest terms.

    22 · 55 · Simplifying fractions

  10. 10. Simplify the fraction 21/24 to its lowest terms.

    21 · 24 · Simplifying fractions

  11. 11. Simplify the fraction 15/20 to its lowest terms.

    15 · 20 · Simplifying fractions

  12. 12. Simplify the fraction 11/22 to its lowest terms.

    11 · 22 · Simplifying fractions
12 questions · Seed 43 · Age guidance, not curriculum certification
View the answer key
Worksheet StudioAnswer key · Ages 7-9

Simplifying fractions

Answers and reasoning. Review before teaching.

  1. 1. Simplify the fraction 8/24 to its lowest terms.

    1/3

    Divide numerator and denominator by their highest common factor (8): 8 ÷ 8 = 1 and 24 ÷ 8 = 3.

  2. 2. Simplify the fraction 12/36 to its lowest terms.

    1/3

    Divide numerator and denominator by their highest common factor (12): 12 ÷ 12 = 1 and 36 ÷ 12 = 3.

  3. 3. Simplify the fraction 5/20 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (5): 5 ÷ 5 = 1 and 20 ÷ 5 = 4.

  4. 4. Simplify the fraction 24/30 to its lowest terms.

    4/5

    Divide numerator and denominator by their highest common factor (6): 24 ÷ 6 = 4 and 30 ÷ 6 = 5.

  5. 5. Simplify the fraction 70/80 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (10): 70 ÷ 10 = 7 and 80 ÷ 10 = 8.

  6. 6. Simplify the fraction 35/40 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (5): 35 ÷ 5 = 7 and 40 ÷ 5 = 8.

  7. 7. Simplify the fraction 18/48 to its lowest terms.

    3/8

    Divide numerator and denominator by their highest common factor (6): 18 ÷ 6 = 3 and 48 ÷ 6 = 8.

  8. 8. Simplify the fraction 36/48 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (12): 36 ÷ 12 = 3 and 48 ÷ 12 = 4.

  9. 9. Simplify the fraction 22/55 to its lowest terms.

    2/5

    Divide numerator and denominator by their highest common factor (11): 22 ÷ 11 = 2 and 55 ÷ 11 = 5.

  10. 10. Simplify the fraction 21/24 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (3): 21 ÷ 3 = 7 and 24 ÷ 3 = 8.

  11. 11. Simplify the fraction 15/20 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (5): 15 ÷ 5 = 3 and 20 ÷ 5 = 4.

  12. 12. Simplify the fraction 11/22 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (11): 11 ÷ 11 = 1 and 22 ÷ 11 = 2.

12 questions · Seed 43 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Simplifying fractions

Take your time. Show your thinking.

  1. 1. Simplify the fraction 8/24 to its lowest terms.

    8 · 24 · Simplifying fractions

  2. 2. Simplify the fraction 12/36 to its lowest terms.

    12 · 36 · Simplifying fractions

  3. 3. Simplify the fraction 5/20 to its lowest terms.

    5 · 20 · Simplifying fractions

  4. 4. Simplify the fraction 24/30 to its lowest terms.

    24 · 30 · Simplifying fractions

  5. 5. Simplify the fraction 70/80 to its lowest terms.

    70 · 80 · Simplifying fractions

  6. 6. Simplify the fraction 35/40 to its lowest terms.

    35 · 40 · Simplifying fractions

  7. 7. Simplify the fraction 18/48 to its lowest terms.

    18 · 48 · Simplifying fractions

  8. 8. Simplify the fraction 36/48 to its lowest terms.

    36 · 48 · Simplifying fractions

  9. 9. Simplify the fraction 22/55 to its lowest terms.

    22 · 55 · Simplifying fractions

  10. 10. Simplify the fraction 21/24 to its lowest terms.

    21 · 24 · Simplifying fractions

  11. 11. Simplify the fraction 15/20 to its lowest terms.

    15 · 20 · Simplifying fractions

  12. 12. Simplify the fraction 11/22 to its lowest terms.

    11 · 22 · Simplifying fractions
12 questions · Seed 43 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Simplifying fractions

Answers and reasoning. Review before teaching.

  1. 1. Simplify the fraction 8/24 to its lowest terms.

    1/3

    Divide numerator and denominator by their highest common factor (8): 8 ÷ 8 = 1 and 24 ÷ 8 = 3.

  2. 2. Simplify the fraction 12/36 to its lowest terms.

    1/3

    Divide numerator and denominator by their highest common factor (12): 12 ÷ 12 = 1 and 36 ÷ 12 = 3.

  3. 3. Simplify the fraction 5/20 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (5): 5 ÷ 5 = 1 and 20 ÷ 5 = 4.

  4. 4. Simplify the fraction 24/30 to its lowest terms.

    4/5

    Divide numerator and denominator by their highest common factor (6): 24 ÷ 6 = 4 and 30 ÷ 6 = 5.

  5. 5. Simplify the fraction 70/80 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (10): 70 ÷ 10 = 7 and 80 ÷ 10 = 8.

  6. 6. Simplify the fraction 35/40 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (5): 35 ÷ 5 = 7 and 40 ÷ 5 = 8.

  7. 7. Simplify the fraction 18/48 to its lowest terms.

    3/8

    Divide numerator and denominator by their highest common factor (6): 18 ÷ 6 = 3 and 48 ÷ 6 = 8.

  8. 8. Simplify the fraction 36/48 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (12): 36 ÷ 12 = 3 and 48 ÷ 12 = 4.

  9. 9. Simplify the fraction 22/55 to its lowest terms.

    2/5

    Divide numerator and denominator by their highest common factor (11): 22 ÷ 11 = 2 and 55 ÷ 11 = 5.

  10. 10. Simplify the fraction 21/24 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (3): 21 ÷ 3 = 7 and 24 ÷ 3 = 8.

  11. 11. Simplify the fraction 15/20 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (5): 15 ÷ 5 = 3 and 20 ÷ 5 = 4.

  12. 12. Simplify the fraction 11/22 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (11): 11 ÷ 11 = 1 and 22 ÷ 11 = 2.

12 questions · Seed 43 · Age guidance, not curriculum certification