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18.) 15
Find the LCM of each number using any of the method.
19.) 9 and 27
20.) 8 and 64​


Sagot :

Multiples of 9:

9, 18, 27, 36, 45

Multiples of 27:

27, 54, 81

Therefore,

LCM(9, 27) = 27

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Multiples of 8:

8, 16, 24, 32, 40, 48, 56, 64, 72, 80

Multiples of 64:

64, 128, 192

Therefore,

LCM(8, 64) = 64

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