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Subtract 5/12 from 28/72

28/72 - 5/12 is -1/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 12 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 72 × 1 = 72,
    28/72 = 28 × 1/72 × 1 = 28/72
  3. Likewise, for the 2nd fraction, since 12 × 6 = 72,
    5/12 = 5 × 6/12 × 6 = 30/72
  4. Subtract the two like fractions:
    28/72 - 30/72 = 28 - 30/72 = -2/72
  5. After reducing the fraction, the answer is -1/36

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