4MA1/2F Jun 2025, Question 20: Mixed Numbers and Improper Fractions
Pearson Edexcel International GCSE Mathematics A 4MA1 · Paper 2F (Foundation) · Calculator · 3 marks
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The question, in short
Show, by working with the mixed numbers 7 1/3 and 3 4/7, that their difference equals 3 16/21.
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Solution · 3 marks
- 17 1/3 = 22/3 and 3 4/7 = 25/7
- 2Common denominator 21
- 322/3 = 154/21 and 25/7 = 75/21
- 4154/21 − 75/21 = 79/21
- 579/21 = 3 16/21
Answer7 1/3 − 3 4/7 = 3 16/21
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