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Subtract 2/81 from 54/8

1st number: 6 6/8, 2nd number: 2/81

54/8 - 2/81 is 2179/324.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 81 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 8 × 81 = 648,
    54/8 = 54 × 81/8 × 81 = 4374/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    2/81 = 2 × 8/81 × 8 = 16/648
  4. Subtract the two like fractions:
    4374/648 - 16/648 = 4374 - 16/648 = 4358/648
  5. After reducing the fraction, the answer is 2179/324
  6. In mixed form: 6235/324

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