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Subtract 4/18 from 12/56

12/56 - 4/18 is -1/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 18 is 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 18 × 28 = 504,
    4/18 = 4 × 28/18 × 28 = 112/504
  4. Subtract the two fractions:
    108/504 - 112/504 = 108 - 112/504 = -4/504
  5. After reducing the fraction, the answer is -1/126

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