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Add 8/21 and 84/9

1st number: 8/21, 2nd number: 9 3/9

8/21 + 84/9 is 68/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    8/21 = 8 × 3/21 × 3 = 24/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    84/9 = 84 × 7/9 × 7 = 588/63
  4. Add the two fractions:
    24/63 + 588/63 = 24 + 588/63 = 612/63
  5. After reducing the fraction, the answer is 68/7
  6. In mixed form: 95/7

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