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Add 3/28 and 12/27

3/28 + 12/27 is 139/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 27 is 756
  2. For the 1st fraction, since 28 × 27 = 756,
    3/28 = 3 × 27/28 × 27 = 81/756
  3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
    12/27 = 12 × 28/27 × 28 = 336/756
  4. Add the two fractions:
    81/756 + 336/756 = 81 + 336/756 = 417/756
  5. After reducing the fraction, the answer is 139/252

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