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Subtract 10/9 from 27/90

1st number: 27/90, 2nd number: 1 1/9

27/90 - 10/9 is -73/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 9 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    27/90 = 27 × 1/90 × 1 = 27/90
  3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
    10/9 = 10 × 10/9 × 10 = 100/90
  4. Subtract the two like fractions:
    27/90 - 100/90 = 27 - 100/90 = -73/90

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