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Add 28/21 and 3/81

1st number: 1 7/21, 2nd number: 3/81

28/21 + 3/81 is 37/27.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 81 is 567
  2. For the 1st fraction, since 21 × 27 = 567,
    28/21 = 28 × 27/21 × 27 = 756/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    3/81 = 3 × 7/81 × 7 = 21/567
  4. Add the two fractions:
    756/567 + 21/567 = 756 + 21/567 = 777/567
  5. After reducing the fraction, the answer is 37/27
  6. In mixed form: 110/27

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