GCSE Maths - How to Rationalise the Denominator of a Surd (Part 3/3) (2026/27 exams)
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This video shows how you subtract the numerator and denominator to get a difference, and then recognize that the greatest common factor must be a factor of that difference, or the difference itself. By drawing the numerator and denominator, it adds another layer of how to see the relationships. I hope this helps! | Superteacherguy
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This video shows how you subtract the numerator and denominator to get a difference, and then recognize that the greatest common factor must be a factor of that difference, or the difference itself. By drawing the numerator and denominator, it adds another layer of how to see the relationships. I hope this helps! | Superteacherguy
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