4MA1/1HR Jun 2025, Question 1: HCF and LCM
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 1HR (Higher) · Calculator · 2 marks
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The question, in short
Find the lowest common multiple of 45 and 70.
Summarised in our own words. Use the official paper for the exact wording and any diagrams.
Solution · 2 marks
- 145 = 3² × 5
- 270 = 2 × 5 × 7
- 3LCM = 2 × 3² × 5 × 7
- 4= 630
Answer630
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