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Add 28/21 and 35/9

1st number: 1 7/21, 2nd number: 3 8/9

28/21 + 35/9 is 47/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    28/21 = 28 × 3/21 × 3 = 84/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    35/9 = 35 × 7/9 × 7 = 245/63
  4. Add the two fractions:
    84/63 + 245/63 = 84 + 245/63 = 329/63
  5. After reducing the fraction, the answer is 47/9
  6. In mixed form: 52/9

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