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Subtract 81/3 from 28/4

1st number: 7 0/4, 2nd number: 27 0/3

28/4 - 81/3 is -20/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 3 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 4 × 3 = 12,
    28/4 = 28 × 3/4 × 3 = 84/12
  3. Likewise, for the 2nd fraction, since 3 × 4 = 12,
    81/3 = 81 × 4/3 × 4 = 324/12
  4. Subtract the two like fractions:
    84/12 - 324/12 = 84 - 324/12 = -240/12
  5. After reducing the fraction, the answer is -20/1

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