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naleisarivera211
naleisarivera211 naleisarivera211
  • 23-03-2017
  • Mathematics
Answered

What are the first three common multiples of 9 and 21?

Verified Answer :

kwissteenuh
kwissteenuh kwissteenuh
  • 23-03-2017

36, 72, and 108. Pretty sure!

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apologiabiology
apologiabiology apologiabiology
  • 23-03-2017

find first common multiplule
factor them
9=33
21=37

lcm=337=63

63 times 2=126
63 times 3=189


the first common multipules are 63,126,189

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