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Subtract 3/20 from 4/27

4/27 - 3/20 is -1/540.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 20 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    4/27 = 4 × 20/27 × 20 = 80/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    3/20 = 3 × 27/20 × 27 = 81/540
  4. Subtract the two like fractions:
    80/540 - 81/540 = 80 - 81/540 = -1/540

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