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Add 28/3 and 81/4

1st number: 9 1/3, 2nd number: 20 1/4

28/3 + 81/4 is 355/12.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 3 × 4 = 12,
    28/3 = 28 × 4/3 × 4 = 112/12
  3. Likewise, for the 2nd fraction, since 4 × 3 = 12,
    81/4 = 81 × 3/4 × 3 = 243/12
  4. Add the two like fractions:
    112/12 + 243/12 = 112 + 243/12 = 355/12
  5. So, 28/3 + 81/4 = 355/12
    In mixed form: 297/12

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