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Add 24/21 and 84/9

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

24/21 + 84/9 is 220/21.

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,
    24/21 = 24 × 3/21 × 3 = 72/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    84/9 = 84 × 7/9 × 7 = 588/63
  4. Add the two fractions:
    72/63 + 588/63 = 72 + 588/63 = 660/63
  5. After reducing the fraction, the answer is 220/21
  6. In mixed form: 1010/21

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