Ratio, proportion and rates of changeKey Stage 3

Writing a ratio from quantities

Write a ratio in the stated order.

  • A ratio compares quantities.
  • Keep the quantities in the order named in the question.
  • Use a colon to separate the parts.

Example 1

There are red counters and blue counters. Write the ratio of red to blue counters.

Keep the quantities in the order asked: red first, blue second.

Example 2

There are red counters and blue counters. Write the ratio of red to blue counters.

Keep the quantities in the order asked: red first, blue second.

Remember
Use a colon to separate the parts.

Your turn

Question 1

There are red counters and blue counters. Write the ratio of red to blue counters.

Check answer

Keep the quantities in the order asked: red first, blue second.

Question 2

There are red counters and blue counters. Write the ratio of red to blue counters.

Check answer

Keep the quantities in the order asked: red first, blue second.

Question 3

There are red counters and blue counters. Write the ratio of red to blue counters.

Check answer

Keep the quantities in the order asked: red first, blue second.

Question 4

There are red counters and blue counters. Write the ratio of red to blue counters.

Check answer

Keep the quantities in the order asked: red first, blue second.

Question 5

There are red counters and blue counters. Write the ratio of red to blue counters.

Check answer

Keep the quantities in the order asked: red first, blue second.

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