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Add 84/3 and 15/12

1st number: 28 0/3, 2nd number: 1 3/12

84/3 + 15/12 is 117/4.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 3 × 4 = 12,
    84/3 = 84 × 4/3 × 4 = 336/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    15/12 = 15 × 1/12 × 1 = 15/12
  4. Add the two like fractions:
    336/12 + 15/12 = 336 + 15/12 = 351/12
  5. 351/12 simplified gives 117/4
  6. So, 84/3 + 15/12 = 117/4
    In mixed form: 291/4

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