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Add 84/3 and 75/21

1st number: 28 0/3, 2nd number: 3 12/21

84/3 + 75/21 is 221/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 21 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    84/3 = 84 × 7/3 × 7 = 588/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    75/21 = 75 × 1/21 × 1 = 75/21
  4. Add the two like fractions:
    588/21 + 75/21 = 588 + 75/21 = 663/21
  5. 663/21 simplified gives 221/7
  6. So, 84/3 + 75/21 = 221/7
    In mixed form: 314/7

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