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Add 21/3 and 30/84

1st number: 7 0/3, 2nd number: 30/84

21/3 + 30/84 is 103/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 3 × 28 = 84,
    21/3 = 21 × 28/3 × 28 = 588/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    30/84 = 30 × 1/84 × 1 = 30/84
  4. Add the two like fractions:
    588/84 + 30/84 = 588 + 30/84 = 618/84
  5. 618/84 simplified gives 103/14
  6. So, 21/3 + 30/84 = 103/14
    In mixed form: 75/14

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