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Considering your question is asking about the numbers 2, 5 & 9 :

The denominators here do not share a common factor.

Multiply the denominators: 2×5×9 = 90.

Since 2, 5 and 9 are factors of 90 and neither is a factor of the other, 90 is the least common denominator (LCD).

Considering the numbers 25 & 9 :

Multiply the denominators: 25×9 = 225

Since 25 and 9 are factors of 225 and neither is a factor of the other, 225 is the LCD

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11y ago

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