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Since 14m - 42 is a multiple of 7m - 21, it is automatically the LCM of this problem.

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12y ago

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The LCM of 7m-21 and 14m-42 is 14m-42. Since 14m-42 is a multiple of 7m-21, it is also the least common multiple (LCM) of the two expressions.

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9mo ago
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Q: What is the LCM of 7m-21 and 14m-42?
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