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Subtract 81/84 from 84/56

1st number: 1 28/56, 2nd number: 81/84

84/56 - 81/84 is 15/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 84 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 56 × 3 = 168,
    84/56 = 84 × 3/56 × 3 = 252/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    81/84 = 81 × 2/84 × 2 = 162/168
  4. Subtract the two like fractions:
    252/168 - 162/168 = 252 - 162/168 = 90/168
  5. After reducing the fraction, the answer is 15/28

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