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Subtract 1/27 from 20/45

20/45 - 1/27 is 11/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 27 is 135

    Next, find the equivalent fraction of both fractional numbers with denominator 135
  2. For the 1st fraction, since 45 × 3 = 135,
    20/45 = 20 × 3/45 × 3 = 60/135
  3. Likewise, for the 2nd fraction, since 27 × 5 = 135,
    1/27 = 1 × 5/27 × 5 = 5/135
  4. Subtract the two like fractions:
    60/135 - 5/135 = 60 - 5/135 = 55/135
  5. After reducing the fraction, the answer is 11/27

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