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Subtract 28/20 from 4/12

1st number: 4/12, 2nd number: 1 8/20

4/12 - 28/20 is -16/15.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    4/12 = 4 × 5/12 × 5 = 20/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    28/20 = 28 × 3/20 × 3 = 84/60
  4. Subtract the two like fractions:
    20/60 - 84/60 = 20 - 84/60 = -64/60
  5. After reducing the fraction, the answer is -16/15

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