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Subtract 3/54 from 7/20

7/20 - 3/54 is 53/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 54 is 540
  2. For the 1st fraction, since 20 × 27 = 540,
    7/20 = 7 × 27/20 × 27 = 189/540
  3. Likewise, for the 2nd fraction, since 54 × 10 = 540,
    3/54 = 3 × 10/54 × 10 = 30/540
  4. Subtract the two fractions:
    189/540 - 30/540 = 189 - 30/540 = 159/540
  5. After reducing the fraction, the answer is 53/180

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