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Add 12/21 and 4/6

12/21 + 4/6 is 26/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 6 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    12/21 = 12 × 2/21 × 2 = 24/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    4/6 = 4 × 7/6 × 7 = 28/42
  4. Add the two like fractions:
    24/42 + 28/42 = 24 + 28/42 = 52/42
  5. 52/42 simplified gives 26/21
  6. So, 12/21 + 4/6 = 26/21
    In mixed form: 15/21

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