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Subtract 56/81 from 81/30

1st number: 2 21/30, 2nd number: 56/81

81/30 - 56/81 is 1627/810.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 81 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 30 × 27 = 810,
    81/30 = 81 × 27/30 × 27 = 2187/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    56/81 = 56 × 10/81 × 10 = 560/810
  4. Subtract the two like fractions:
    2187/810 - 560/810 = 2187 - 560/810 = 1627/810
  5. In mixed form: 27/810

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