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Add 84/16 and 30/21

1st number: 5 4/16, 2nd number: 1 9/21

84/16 + 30/21 is 187/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 16 and 21 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 16 × 21 = 336,
    84/16 = 84 × 21/16 × 21 = 1764/336
  3. Likewise, for the 2nd fraction, since 21 × 16 = 336,
    30/21 = 30 × 16/21 × 16 = 480/336
  4. Add the two like fractions:
    1764/336 + 480/336 = 1764 + 480/336 = 2244/336
  5. 2244/336 simplified gives 187/28
  6. So, 84/16 + 30/21 = 187/28
    In mixed form: 619/28

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