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Ratio Notation & Simplifying (Year 7)

Free printable UK Year 7 (Key Stage 3) maths worksheet: write and simplify ratios in their simplest form, including 3-term ratios and the 1:n unit form. Every answer computed.

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Grade 6 · Math worksheet
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Math

Ratio Notation & Simplifying

Write each ratio in its simplest form, or in the unit form 1 : n. Simplify by dividing every term by the highest common factor.

  1. 1.
    Write the ratio 10 : 18 in its simplest form.
  2. 2.
    Write the ratio 24 : 4 in its simplest form.
  3. 3.
    Write the ratio 36 : 42 in its simplest form.
  4. 4.
    Write the ratio 63 : 35 in its simplest form.
  5. 5.
    Write the ratio 3 : 27 in its simplest form.
  6. 6.
    Write the ratio 20 : 25 : 30 in its simplest form.
  7. 7.
    Write the ratio 3 : 12 : 15 in its simplest form.
  8. 8.
    Write the ratio 9 : 15 : 6 in its simplest form.
  9. 9.
    In a paint mix there are 24 parts blue paint and 20 parts white paint. Write the ratio of parts blue paint to parts white paint in its simplest form.
  10. 10.
    In a paint mix there are 28 parts blue paint and 4 parts white paint. Write the ratio of parts blue paint to parts white paint in its simplest form.
  11. 11.
    In a car park there are 54 cars and 12 vans. Write the ratio of cars to vans in its simplest form.
  12. 12.
    In a paint mix there are 42 parts blue paint and 49 parts white paint. Write the ratio of parts blue paint to parts white paint in its simplest form.
  13. 13.
    Write the ratio 24 : 42 in the form 1 : n.
  14. 14.
    Write the ratio 20 : 15 in the form 1 : n.
  15. 15.
    Write the ratio 30 : 36 in the form 1 : n.
  16. 16.
    Write the ratio 24 : 42 in the form 1 : n.
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