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Add 8/21 and 9/14

8/21 + 9/14 is 43/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 14 is 42
  2. For the 1st fraction, since 21 × 2 = 42,
    8/21 = 8 × 2/21 × 2 = 16/42
  3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
    9/14 = 9 × 3/14 × 3 = 27/42
  4. Add the two fractions:
    16/42 + 27/42 = 16 + 27/42 = 43/42
  5. In mixed form: 11/42

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