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Subtract 81/28 from 84/56

1st number: 1 28/56, 2nd number: 2 25/28

84/56 - 81/28 is -39/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 28 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 56 × 1 = 56,
    84/56 = 84 × 1/56 × 1 = 84/56
  3. Likewise, for the 2nd fraction, since 28 × 2 = 56,
    81/28 = 81 × 2/28 × 2 = 162/56
  4. Subtract the two like fractions:
    84/56 - 162/56 = 84 - 162/56 = -78/56
  5. After reducing the fraction, the answer is -39/28

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