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Subtract 7/9 from 9/8

1st number: 1 1/8, 2nd number: 7/9

9/8 - 7/9 is 25/72.

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,
    9/8 = 9 × 9/8 × 9 = 81/72
  3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
    7/9 = 7 × 8/9 × 8 = 56/72
  4. Subtract the two fractions:
    81/72 - 56/72 = 81 - 56/72 = 25/72

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