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Add 21/9 and 16/12

1st number: 2 3/9, 2nd number: 1 4/12

21/9 + 16/12 is 11/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 12 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 9 × 4 = 36,
    21/9 = 21 × 4/9 × 4 = 84/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    16/12 = 16 × 3/12 × 3 = 48/36
  4. Add the two like fractions:
    84/36 + 48/36 = 84 + 48/36 = 132/36
  5. 132/36 simplified gives 11/3
  6. So, 21/9 + 16/12 = 11/3
    In mixed form: 32/3

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