Find the LCM of 20, 25 and 30

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Text solutionVerified

Solution:

40 = 2 \cdot 2 \cdot 2 \cdot 5

48 = 2 \cdot 2 \cdot 2 \cdot 2 \cdot 5

45 = 3 \cdot 3 \cdot 5

LCM=

(2 \cdot 2 \cdot 2 \cdot 2) \cdot (3 \cdot 3) \cdot 5

= 16 \cdot 9 \cdot 5

= 720

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