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Answer: GCF = 9

Step-by-step explanation: 45/9 = 5 and 81/9 = 9. 5/9 is as much as you can simplify. Brainliest please?

Greatest common factor is 9

Step-by-step explanation:

The biggest factor that matches 45 and 81 is 9.

45: 1,3,5,9,15,45

81: 1,3,9,27,81

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