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Add 63/12 and 16/21

1st number: 5 3/12, 2nd number: 16/21

63/12 + 16/21 is 505/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    63/12 = 63 × 7/12 × 7 = 441/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    16/21 = 16 × 4/21 × 4 = 64/84
  4. Add the two like fractions:
    441/84 + 64/84 = 441 + 64/84 = 505/84
  5. So, 63/12 + 16/21 = 505/84
    In mixed form: 61/84

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