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Subtract 8/9 from 6/8

6/8 - 8/9 is -5/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 9 is 72
  2. For the 1st fraction, since 8 × 9 = 72,
    6/8 = 6 × 9/8 × 9 = 54/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    8/9 = 8 × 8/9 × 8 = 64/72
  4. Subtract the two fractions:
    54/72 - 64/72 = 54 - 64/72 = -10/72
  5. After reducing the fraction, the answer is -5/36

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