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Subtract 10/81 from 10/9

1st number: 1 1/9, 2nd number: 10/81

10/9 - 10/81 is 80/81.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 81 is 81

    Next, find the equivalent fraction of both fractional numbers with denominator 81
  2. For the 1st fraction, since 9 × 9 = 81,
    10/9 = 10 × 9/9 × 9 = 90/81
  3. Likewise, for the 2nd fraction, since 81 × 1 = 81,
    10/81 = 10 × 1/81 × 1 = 10/81
  4. Subtract the two like fractions:
    90/81 - 10/81 = 90 - 10/81 = 80/81

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