The greatest common factor between 36 and 81 is 9. 36/9 = 4 and 81/9 = 9.
36/81 = 4/9.
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There are 36 inches in one yard. Therefore, 81 yards is equal to 81 x 36 = 2916 inches.
36/81 = 4/9 = 8/18
The GCF is 9 36/81 = 4/9
36
36.