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Subtract 30/84 from 1/9

1/9 - 30/84 is -31/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 9 × 28 = 252,
    1/9 = 1 × 28/9 × 28 = 28/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    30/84 = 30 × 3/84 × 3 = 90/252
  4. Subtract the two like fractions:
    28/252 - 90/252 = 28 - 90/252 = -62/252
  5. After reducing the fraction, the answer is -31/126

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