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Add 84/9 and 15/12

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

84/9 + 15/12 is 127/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 12 is 36
  2. For the 1st fraction, since 9 × 4 = 36,
    84/9 = 84 × 4/9 × 4 = 336/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    15/12 = 15 × 3/12 × 3 = 45/36
  4. Add the two fractions:
    336/36 + 45/36 = 336 + 45/36 = 381/36
  5. After reducing the fraction, the answer is 127/12
  6. In mixed form: 107/12

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