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Subtract 35/20 from 12/54

1st number: 12/54, 2nd number: 1 15/20

12/54 - 35/20 is -55/36.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 20 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 54 × 10 = 540,
    12/54 = 12 × 10/54 × 10 = 120/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    35/20 = 35 × 27/20 × 27 = 945/540
  4. Subtract the two like fractions:
    120/540 - 945/540 = 120 - 945/540 = -825/540
  5. After reducing the fraction, the answer is -55/36

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