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4024/13 May/Jun 2026, Question 7: Addition and Subtraction of Fractions

Cambridge O Level Mathematics 4024 · Paper 13 (Non-calculator) · Non-calculator · 5 marks

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The question, in short

Evaluate two numerical expressions: one involving subtraction and multiplication with a negative decimal, and one subtracting two fractions, giving the fraction answer in lowest terms.

Summarised in our own words. Use the official paper for the exact wording and any diagrams.

Part (a) · 2 marks

Calculate the value of 30 − 0.5 × (−6), respecting order of operations.

  1. 10.5 × (−6) = −3
  2. 230 − (−3) = 33

Answer33

Part (b) · 3 marks

Subtract 3/10 from 3/4 and express the result as a fraction reduced to simplest form.

  1. 1Common denominator 20
  2. 23/4 = 15/20, 3/10 = 6/20
  3. 315/20 − 6/20 = 9/20

Answer9/20

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