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In a technical workshop on standardizing measurement formulas, the procedure for adding 512x2y\frac{5}{12x^2y} and 421xy2\frac{4}{21xy^2} is discussed. To identify the Least Common Denominator (LCD) for these expressions, the rule states that for each variable factor (such as xx or yy), the LCD must include that factor raised to the __________ (highest or lowest) power that appears in any of the original denominators.

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Updated 2026-04-15

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