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Add 28/9 and 12/21

1st number: 3 1/9, 2nd number: 12/21

28/9 + 12/21 is 232/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 21 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    28/9 = 28 × 7/9 × 7 = 196/63
  3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
    12/21 = 12 × 3/21 × 3 = 36/63
  4. Add the two like fractions:
    196/63 + 36/63 = 196 + 36/63 = 232/63
  5. So, 28/9 + 12/21 = 232/63
    In mixed form: 343/63

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