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Subtract 7/12 from 30/84

30/84 - 7/12 is -19/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 84 × 1 = 84,
    30/84 = 30 × 1/84 × 1 = 30/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    7/12 = 7 × 7/12 × 7 = 49/84
  4. Subtract the two like fractions:
    30/84 - 49/84 = 30 - 49/84 = -19/84

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