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Subtract 10/9 from 81/18

1st number: 4 9/18, 2nd number: 1 1/9

81/18 - 10/9 is 61/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 9 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 18 × 1 = 18,
    81/18 = 81 × 1/18 × 1 = 81/18
  3. Likewise, for the 2nd fraction, since 9 × 2 = 18,
    10/9 = 10 × 2/9 × 2 = 20/18
  4. Subtract the two like fractions:
    81/18 - 20/18 = 81 - 20/18 = 61/18
  5. In mixed form: 37/18

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