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Subtract 10/18 from 81/54

1st number: 1 27/54, 2nd number: 10/18

81/54 - 10/18 is 17/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 18 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 54 × 1 = 54,
    81/54 = 81 × 1/54 × 1 = 81/54
  3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
    10/18 = 10 × 3/18 × 3 = 30/54
  4. Subtract the two like fractions:
    81/54 - 30/54 = 81 - 30/54 = 51/54
  5. After reducing the fraction, the answer is 17/18

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