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Add 8/12 and 21/49

8/12 + 21/49 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 49 is 588

    Next, find the equivalent fraction of both fractional numbers with denominator 588
  2. For the 1st fraction, since 12 × 49 = 588,
    8/12 = 8 × 49/12 × 49 = 392/588
  3. Likewise, for the 2nd fraction, since 49 × 12 = 588,
    21/49 = 21 × 12/49 × 12 = 252/588
  4. Add the two like fractions:
    392/588 + 252/588 = 392 + 252/588 = 644/588
  5. 644/588 simplified gives 23/21
  6. So, 8/12 + 21/49 = 23/21
    In mixed form: 12/21

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