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Find the LCM of the following …

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Find the LCM of the following numbers: (a) 9 and 4 (b) 12 and 5 (c) 6 and 5 (d) 15 and 4 Observe a common property in the obtained LCMs. Is LCM the product of two numbers in each case?
  • 1 answers

Sia ? 6 years, 6 months ago

  • 9 and 4 are co-primes. LCM of 9 and 4 is 36(9 x 4=36)
  • As 6 and 5 are co-primes .LCM=6 x 5=30

  • 15 and 4 are co-primes. LCM of 15 and 4 is 36(15x4=60)

When the two numbers are co - prime, their product is their LCM.

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