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Add 12/14 and 4/21

12/14 + 4/21 is 22/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 21 is 42
  2. For the 1st fraction, since 14 × 3 = 42,
    12/14 = 12 × 3/14 × 3 = 36/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    4/21 = 4 × 2/21 × 2 = 8/42
  4. Add the two fractions:
    36/42 + 8/42 = 36 + 8/42 = 44/42
  5. 44/42 simplified gives 22/21
  6. So, 12/14 + 4/21 = 22/21
    In mixed form: 11/21

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