How to Find the LCM and GCF (Three Methods)
Find the least common multiple and greatest common factor by listing, prime factorisation and Euclid's algorithm, and learn when to use each.
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Find the least common multiple and greatest common factor by listing, prime factorisation and Euclid's algorithm, and learn when to use each.
Simplify any fraction to its lowest terms using the greatest common factor, with worked examples, prime-factor checks and common mistakes.