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Add 30/9 and 45/12

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

30/9 + 45/12 is 85/12.

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,
    30/9 = 30 × 4/9 × 4 = 120/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    45/12 = 45 × 3/12 × 3 = 135/36
  4. Add the two fractions:
    120/36 + 135/36 = 120 + 135/36 = 255/36
  5. After reducing the fraction, the answer is 85/12
  6. In mixed form: 71/12

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