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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 5/10 to its lowest terms.

    5 · 10 · Simplifying fractions

  2. 2. Simplify the fraction 4/10 to its lowest terms.

    4 · 10 · Simplifying fractions

  3. 3. Simplify the fraction 25/40 to its lowest terms.

    25 · 40 · Simplifying fractions

  4. 4. Simplify the fraction 18/24 to its lowest terms.

    18 · 24 · Simplifying fractions

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

    5 · 20 · Simplifying fractions

  6. 6. Simplify the fraction 14/21 to its lowest terms.

    14 · 21 · Simplifying fractions

  7. 7. Simplify the fraction 9/18 to its lowest terms.

    9 · 18 · Simplifying fractions

  8. 8. Simplify the fraction 11/44 to its lowest terms.

    11 · 44 · Simplifying fractions

  9. 9. Simplify the fraction 3/12 to its lowest terms.

    3 · 12 · Simplifying fractions

  10. 10. Simplify the fraction 42/48 to its lowest terms.

    42 · 48 · Simplifying fractions

  11. 11. Simplify the fraction 33/55 to its lowest terms.

    33 · 55 · Simplifying fractions

  12. 12. Simplify the fraction 3/6 to its lowest terms.

    3 · 6 · Simplifying fractions
12 questions · Seed 44 · 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 5/10 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (5): 5 ÷ 5 = 1 and 10 ÷ 5 = 2.

  2. 2. Simplify the fraction 4/10 to its lowest terms.

    2/5

    Divide numerator and denominator by their highest common factor (2): 4 ÷ 2 = 2 and 10 ÷ 2 = 5.

  3. 3. Simplify the fraction 25/40 to its lowest terms.

    5/8

    Divide numerator and denominator by their highest common factor (5): 25 ÷ 5 = 5 and 40 ÷ 5 = 8.

  4. 4. Simplify the fraction 18/24 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (6): 18 ÷ 6 = 3 and 24 ÷ 6 = 4.

  5. 5. 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.

  6. 6. Simplify the fraction 14/21 to its lowest terms.

    2/3

    Divide numerator and denominator by their highest common factor (7): 14 ÷ 7 = 2 and 21 ÷ 7 = 3.

  7. 7. Simplify the fraction 9/18 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (9): 9 ÷ 9 = 1 and 18 ÷ 9 = 2.

  8. 8. Simplify the fraction 11/44 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (11): 11 ÷ 11 = 1 and 44 ÷ 11 = 4.

  9. 9. Simplify the fraction 3/12 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (3): 3 ÷ 3 = 1 and 12 ÷ 3 = 4.

  10. 10. Simplify the fraction 42/48 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (6): 42 ÷ 6 = 7 and 48 ÷ 6 = 8.

  11. 11. Simplify the fraction 33/55 to its lowest terms.

    3/5

    Divide numerator and denominator by their highest common factor (11): 33 ÷ 11 = 3 and 55 ÷ 11 = 5.

  12. 12. Simplify the fraction 3/6 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (3): 3 ÷ 3 = 1 and 6 ÷ 3 = 2.

12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioPractice pack · Ages 7-9

Simplifying fractions

Take your time. Show your thinking.

  1. 1. Simplify the fraction 5/10 to its lowest terms.

    5 · 10 · Simplifying fractions

  2. 2. Simplify the fraction 4/10 to its lowest terms.

    4 · 10 · Simplifying fractions

  3. 3. Simplify the fraction 25/40 to its lowest terms.

    25 · 40 · Simplifying fractions

  4. 4. Simplify the fraction 18/24 to its lowest terms.

    18 · 24 · Simplifying fractions

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

    5 · 20 · Simplifying fractions

  6. 6. Simplify the fraction 14/21 to its lowest terms.

    14 · 21 · Simplifying fractions

  7. 7. Simplify the fraction 9/18 to its lowest terms.

    9 · 18 · Simplifying fractions

  8. 8. Simplify the fraction 11/44 to its lowest terms.

    11 · 44 · Simplifying fractions

  9. 9. Simplify the fraction 3/12 to its lowest terms.

    3 · 12 · Simplifying fractions

  10. 10. Simplify the fraction 42/48 to its lowest terms.

    42 · 48 · Simplifying fractions

  11. 11. Simplify the fraction 33/55 to its lowest terms.

    33 · 55 · Simplifying fractions

  12. 12. Simplify the fraction 3/6 to its lowest terms.

    3 · 6 · Simplifying fractions
12 questions · Seed 44 · Age guidance, not curriculum certification
Worksheet StudioAnswer key · Ages 7-9

Simplifying fractions

Answers and reasoning. Review before teaching.

  1. 1. Simplify the fraction 5/10 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (5): 5 ÷ 5 = 1 and 10 ÷ 5 = 2.

  2. 2. Simplify the fraction 4/10 to its lowest terms.

    2/5

    Divide numerator and denominator by their highest common factor (2): 4 ÷ 2 = 2 and 10 ÷ 2 = 5.

  3. 3. Simplify the fraction 25/40 to its lowest terms.

    5/8

    Divide numerator and denominator by their highest common factor (5): 25 ÷ 5 = 5 and 40 ÷ 5 = 8.

  4. 4. Simplify the fraction 18/24 to its lowest terms.

    3/4

    Divide numerator and denominator by their highest common factor (6): 18 ÷ 6 = 3 and 24 ÷ 6 = 4.

  5. 5. 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.

  6. 6. Simplify the fraction 14/21 to its lowest terms.

    2/3

    Divide numerator and denominator by their highest common factor (7): 14 ÷ 7 = 2 and 21 ÷ 7 = 3.

  7. 7. Simplify the fraction 9/18 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (9): 9 ÷ 9 = 1 and 18 ÷ 9 = 2.

  8. 8. Simplify the fraction 11/44 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (11): 11 ÷ 11 = 1 and 44 ÷ 11 = 4.

  9. 9. Simplify the fraction 3/12 to its lowest terms.

    1/4

    Divide numerator and denominator by their highest common factor (3): 3 ÷ 3 = 1 and 12 ÷ 3 = 4.

  10. 10. Simplify the fraction 42/48 to its lowest terms.

    7/8

    Divide numerator and denominator by their highest common factor (6): 42 ÷ 6 = 7 and 48 ÷ 6 = 8.

  11. 11. Simplify the fraction 33/55 to its lowest terms.

    3/5

    Divide numerator and denominator by their highest common factor (11): 33 ÷ 11 = 3 and 55 ÷ 11 = 5.

  12. 12. Simplify the fraction 3/6 to its lowest terms.

    1/2

    Divide numerator and denominator by their highest common factor (3): 3 ÷ 3 = 1 and 6 ÷ 3 = 2.

12 questions · Seed 44 · Age guidance, not curriculum certification