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Add 84/4 and 80/9

1st number: 21 0/4, 2nd number: 8 8/9

84/4 + 80/9 is 269/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 9 is 36
  2. For the 1st fraction, since 4 × 9 = 36,
    84/4 = 84 × 9/4 × 9 = 756/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    80/9 = 80 × 4/9 × 4 = 320/36
  4. Add the two fractions:
    756/36 + 320/36 = 756 + 320/36 = 1076/36
  5. 1076/36 simplified gives 269/9
  6. So, 84/4 + 80/9 = 269/9
    In mixed form: 298/9

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