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Subtract 9/3 from 20/12

1st number: 1 8/12, 2nd number: 3 0/3

20/12 - 9/3 is -4/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 3 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 12 × 1 = 12,
    20/12 = 20 × 1/12 × 1 = 20/12
  3. Likewise, for the 2nd fraction, since 3 × 4 = 12,
    9/3 = 9 × 4/3 × 4 = 36/12
  4. Subtract the two like fractions:
    20/12 - 36/12 = 20 - 36/12 = -16/12
  5. After reducing the fraction, the answer is -4/3

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