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Subtract 4/56 from 20/12

1st number: 1 8/12, 2nd number: 4/56

20/12 - 4/56 is 67/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 56 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 12 × 14 = 168,
    20/12 = 20 × 14/12 × 14 = 280/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    4/56 = 4 × 3/56 × 3 = 12/168
  4. Subtract the two like fractions:
    280/168 - 12/168 = 280 - 12/168 = 268/168
  5. After reducing the fraction, the answer is 67/42
  6. In mixed form: 125/42

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