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Subtract 63/28 from 81/56

1st number: 1 25/56, 2nd number: 2 7/28

81/56 - 63/28 is -45/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 28 is 56
  2. For the 1st fraction, since 56 × 1 = 56,
    81/56 = 81 × 1/56 × 1 = 81/56
  3. Likewise, for the 2nd fraction, since 28 × 2 = 56,
    63/28 = 63 × 2/28 × 2 = 126/56
  4. Subtract the two fractions:
    81/56 - 126/56 = 81 - 126/56 = -45/56

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