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Add 14/28 and 12/21

14/28 + 12/21 is 15/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 21 is 84
  2. For the 1st fraction, since 28 × 3 = 84,
    14/28 = 14 × 3/28 × 3 = 42/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    12/21 = 12 × 4/21 × 4 = 48/84
  4. Add the two fractions:
    42/84 + 48/84 = 42 + 48/84 = 90/84
  5. After reducing the fraction, the answer is 15/14
  6. In mixed form: 11/14

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