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Subtract 28/63 from 12/56

12/56 - 28/63 is -29/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 56 × 9 = 504,
    12/56 = 12 × 9/56 × 9 = 108/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    28/63 = 28 × 8/63 × 8 = 224/504
  4. Subtract the two like fractions:
    108/504 - 224/504 = 108 - 224/504 = -116/504
  5. After reducing the fraction, the answer is -29/126

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