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Add 84/9 and 75/21

1st number: 9 3/9, 2nd number: 3 12/21

84/9 + 75/21 is 271/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 21 is 63

    Next, find the equivalent fraction of both fractional numbers with denominator 63
  2. For the 1st fraction, since 9 × 7 = 63,
    84/9 = 84 × 7/9 × 7 = 588/63
  3. Likewise, for the 2nd fraction, since 21 × 3 = 63,
    75/21 = 75 × 3/21 × 3 = 225/63
  4. Add the two like fractions:
    588/63 + 225/63 = 588 + 225/63 = 813/63
  5. 813/63 simplified gives 271/21
  6. So, 84/9 + 75/21 = 271/21
    In mixed form: 1219/21

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