How does Modular Arithmetic work?

Question 6 from Tom Rocks Maths and I Love Mathematics - answering the questions sent in and voted for by YOU. This time we explore modular arithmetic through the familiar example of the 12-hour clock.
Full playlist: • How many ping-pong bal...
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Q5: What are the most basic Mathematical Axioms?
Q6: How does Modular Arithmetic work?
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Produced by Dr Tom Crawford at the University of Oxford.
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