AI generatedRatio, proportion and rates of changeKey Stage 3

Simplifying a ratio involving fractions

Fractions in a ratio are still quantities to compare in the stated order.

  • Fractions in a ratio are still quantities to compare in the stated order.
  • Multiply every part by the lowest common multiple of the denominators to make integers.
  • Divide those integers by their highest common factor. Keep the order of the quantities.

Example 1

Write this ratio in simplest whole-number form.

Multiply both parts by the same common denominator.

Example 2

Write this ratio in simplest whole-number form.

Multiply both parts by the same common denominator.

Remember
Use the worked steps to check your method, not just the final answer.

Your turn

Question 1

Write this ratio in simplest whole-number form.

Check answer
Multiply both parts by the same common denominator.
Question 2

Write this ratio in simplest whole-number form.

Check answer
Multiply both parts by the same common denominator.
Question 3

Write this ratio in simplest whole-number form.

Check answer
Multiply both parts by the same common denominator.
Question 4

Write this ratio in simplest whole-number form.

Check answer
Multiply both parts by the same common denominator.
Question 5

Write this ratio in simplest whole-number form.

Check answer
Multiply both parts by the same common denominator.
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