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Subtract 27/12 from 12/20

1st number: 12/20, 2nd number: 2 3/12

12/20 - 27/12 is -33/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    12/20 = 12 × 3/20 × 3 = 36/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    27/12 = 27 × 5/12 × 5 = 135/60
  4. Subtract the two like fractions:
    36/60 - 135/60 = 36 - 135/60 = -99/60
  5. After reducing the fraction, the answer is -33/20

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