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Subtract 8/9 from 7/12

7/12 - 8/9 is -11/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 9 is 36
  2. For the 1st fraction, since 12 × 3 = 36,
    7/12 = 7 × 3/12 × 3 = 21/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    8/9 = 8 × 4/9 × 4 = 32/36
  4. Subtract the two fractions:
    21/36 - 32/36 = 21 - 32/36 = -11/36

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