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Add 15/12 and 20/9

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

15/12 + 20/9 is 125/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 9 is 36
  2. For the 1st fraction, since 12 × 3 = 36,
    15/12 = 15 × 3/12 × 3 = 45/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    20/9 = 20 × 4/9 × 4 = 80/36
  4. Add the two fractions:
    45/36 + 80/36 = 45 + 80/36 = 125/36
  5. In mixed form: 317/36

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