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Add 28/3 and 21/9

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

28/3 + 21/9 is 35/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 9 is 9

    Next, find the equivalent fraction of both fractional numbers with denominator 9
  2. For the 1st fraction, since 3 × 3 = 9,
    28/3 = 28 × 3/3 × 3 = 84/9
  3. Likewise, for the 2nd fraction, since 9 × 1 = 9,
    21/9 = 21 × 1/9 × 1 = 21/9
  4. Add the two like fractions:
    84/9 + 21/9 = 84 + 21/9 = 105/9
  5. 105/9 simplified gives 35/3
  6. So, 28/3 + 21/9 = 35/3
    In mixed form: 112/3

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