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Subtract 8/9 from 9/28

9/28 - 8/9 is -143/252.

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,
    9/28 = 9 × 9/28 × 9 = 81/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    8/9 = 8 × 28/9 × 28 = 224/252
  4. Subtract the two fractions:
    81/252 - 224/252 = 81 - 224/252 = -143/252

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