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What are the first three common multiples of 9 and 21?
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What are the first three common multiples of 9 and 21?
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May 3, 2018
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What are the first three common multiples of 9 and 21?
Mathematics
middle-school
Robertwest
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36, 72, and 108. Pretty sure!
Sinapse
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May 4, 2018
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find first common multiplule
factor them
9=3*3
21=3*7
lcm=3*3*7=63
63 times 2=126
63 times 3=189
the first common multipules are 63,126,189
UDalillu
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May 7, 2018
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