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Subtract 27/7 from 2/81

1st number: 2/81, 2nd number: 3 6/7

2/81 - 27/7 is -2173/567.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 7 is 567

    Next, find the equivalent fraction of both fractional numbers with denominator 567
  2. For the 1st fraction, since 81 × 7 = 567,
    2/81 = 2 × 7/81 × 7 = 14/567
  3. Likewise, for the 2nd fraction, since 7 × 81 = 567,
    27/7 = 27 × 81/7 × 81 = 2187/567
  4. Subtract the two like fractions:
    14/567 - 2187/567 = 14 - 2187/567 = -2173/567

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