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Subtract 9/30 from 12/56

12/56 - 9/30 is -3/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 30 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 56 × 15 = 840,
    12/56 = 12 × 15/56 × 15 = 180/840
  3. Likewise, for the 2nd fraction, since 30 × 28 = 840,
    9/30 = 9 × 28/30 × 28 = 252/840
  4. Subtract the two like fractions:
    180/840 - 252/840 = 180 - 252/840 = -72/840
  5. After reducing the fraction, the answer is -3/35

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