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Subtract 30/81 from 8/30

8/30 - 30/81 is -14/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 81 is 810
  2. For the 1st fraction, since 30 × 27 = 810,
    8/30 = 8 × 27/30 × 27 = 216/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    30/81 = 30 × 10/81 × 10 = 300/810
  4. Subtract the two fractions:
    216/810 - 300/810 = 216 - 300/810 = -84/810
  5. After reducing the fraction, the answer is -14/135

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