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Subtract 30/81 from 8/60

8/60 - 30/81 is -32/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 81 is 1620

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 60 × 27 = 1620,
    8/60 = 8 × 27/60 × 27 = 216/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    30/81 = 30 × 20/81 × 20 = 600/1620
  4. Subtract the two like fractions:
    216/1620 - 600/1620 = 216 - 600/1620 = -384/1620
  5. After reducing the fraction, the answer is -32/135

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