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Add 12/49 and 63/81

12/49 + 63/81 is 451/441.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 81 is 3969

    Next, find the equivalent fraction of both fractional numbers with denominator 3969
  2. For the 1st fraction, since 49 × 81 = 3969,
    12/49 = 12 × 81/49 × 81 = 972/3969
  3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
    63/81 = 63 × 49/81 × 49 = 3087/3969
  4. Add the two like fractions:
    972/3969 + 3087/3969 = 972 + 3087/3969 = 4059/3969
  5. 4059/3969 simplified gives 451/441
  6. So, 12/49 + 63/81 = 451/441
    In mixed form: 110/441

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