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Subtract 1/20 from 25/27

25/27 - 1/20 is 473/540.

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,
    25/27 = 25 × 20/27 × 20 = 500/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    1/20 = 1 × 27/20 × 27 = 27/540
  4. Subtract the two like fractions:
    500/540 - 27/540 = 500 - 27/540 = 473/540

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