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agbyoung

  • 4 years ago

Explain how to find the LCM of two or more numbers

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  1. jimmyrep
    • 4 years ago
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    lcm = lowest common multiple one way is to factor them into primes - an example is lcm of 6 and 10 6 = 2 x 3 10 = 2 x 5 the 2 is common to both - so we only use 2 once to get the lcm lcm = 2 *3*5 = 30 Find lcm of 6 . 8 and 20 6 = 2 x 3 8 = 2 x 2 x 2 20 = 2 x 2 x 5 the 2 is common to all 3 - so we use only one of these 2's, and only one 2 of the pair (in 8 and 20): lcm = 2 x 2 x 2 x 3 x 5 = 120 0 lcm = 2 x

  2. jimmyrep
    • 4 years ago
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    ignore the rubbish at the end!

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