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Subtract 3/9 from 1/28

1/28 - 3/9 is -25/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 9 is 252
  2. For the 1st fraction, since 28 × 9 = 252,
    1/28 = 1 × 9/28 × 9 = 9/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    3/9 = 3 × 28/9 × 28 = 84/252
  4. Subtract the two fractions:
    9/252 - 84/252 = 9 - 84/252 = -75/252
  5. After reducing the fraction, the answer is -25/84

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