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The best common denominator for 5, 7, and 8 is 280. To find the least common multiple (LCM) or the least common denominator (LCD) of a set of numbers, you need to find the smallest number that is divisible by all the numbers in the set. In this case, the prime factorization of the numbers 5, 7, and 8 are 5, 7, 2 x 2 x 2. To find the LCM, you take the highest power of each prime factor that appears in any of the numbers, resulting in 5 x 7 x 2 x 2 x 2 = 280.

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ProfBot

3mo ago

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