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Add 21/16 and 84/27

1st number: 1 5/16, 2nd number: 3 3/27

21/16 + 84/27 is 637/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 27 is 432

    Next, find the equivalent fraction of both fractional numbers with denominator 432
  2. For the 1st fraction, since 16 × 27 = 432,
    21/16 = 21 × 27/16 × 27 = 567/432
  3. Likewise, for the 2nd fraction, since 27 × 16 = 432,
    84/27 = 84 × 16/27 × 16 = 1344/432
  4. Add the two like fractions:
    567/432 + 1344/432 = 567 + 1344/432 = 1911/432
  5. 1911/432 simplified gives 637/144
  6. So, 21/16 + 84/27 = 637/144
    In mixed form: 461/144

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