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To find a common denominator for 25, 27, and 45, we need to determine the least common multiple (LCM) of these numbers. The prime factorization of 25 is 5^2, 27 is 3^3, and 45 is 3^2 * 5. The LCM is the product of the highest power of each prime factor that appears in any of the numbers, which in this case is 3^3 * 5^2 = 225. Therefore, 225 is the common denominator for 25, 27, and 45.

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675 is the answer. 25 x 27 = 675 and 45 x 15 = 675

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Wiki User

14y ago
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Q: What is a common denominator for 25 27 45?
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