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Subtract 63/84 from 27/56

27/56 - 63/84 is -15/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 84 is 168
  2. For the 1st fraction, since 56 × 3 = 168,
    27/56 = 27 × 3/56 × 3 = 81/168
  3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
    63/84 = 63 × 2/84 × 2 = 126/168
  4. Subtract the two fractions:
    81/168 - 126/168 = 81 - 126/168 = -45/168
  5. After reducing the fraction, the answer is -15/56

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