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Subtract 35/81 from 28/30

28/30 - 35/81 is 203/405.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 81 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 30 × 27 = 810,
    28/30 = 28 × 27/30 × 27 = 756/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    35/81 = 35 × 10/81 × 10 = 350/810
  4. Subtract the two like fractions:
    756/810 - 350/810 = 756 - 350/810 = 406/810
  5. After reducing the fraction, the answer is 203/405

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