AI generatedNumberKey Stage 3

Subtracting mixed numbers by borrowing one whole

Use a common denominator first. Compare the fractional parts.

  • Use a common denominator first. Compare the fractional parts.
  • If the first fractional part is too small, exchange one whole for a full denominator of parts.
  • Subtract the whole parts and fractional parts separately, then simplify.

Example 1

Calculate. Give a simplified mixed number.

Exchange one whole for .

Example 2

Calculate. Give a simplified mixed number.

Exchange one whole for .

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

Your turn

Question 1

Calculate. Give a simplified mixed number.

Check answer
Exchange one whole for .
Question 2

Calculate. Give a simplified mixed number.

Check answer
Exchange one whole for .
Question 3

Calculate. Give a simplified mixed number.

Check answer
Exchange one whole for .
Question 4

Calculate. Give a simplified mixed number.

Check answer
Exchange one whole for .
Question 5

Calculate. Give a simplified mixed number.

Check answer
Exchange one whole for .
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