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Subtract 63/70 from 27/56

27/56 - 63/70 is -117/280.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 56 × 5 = 280,
    27/56 = 27 × 5/56 × 5 = 135/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    63/70 = 63 × 4/70 × 4 = 252/280
  4. Subtract the two like fractions:
    135/280 - 252/280 = 135 - 252/280 = -117/280

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