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Add 4/5 and 9/12

4/5 + 9/12 is 31/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 12 is 60
  2. For the 1st fraction, since 5 × 12 = 60,
    4/5 = 4 × 12/5 × 12 = 48/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    9/12 = 9 × 5/12 × 5 = 45/60
  4. Add the two fractions:
    48/60 + 45/60 = 48 + 45/60 = 93/60
  5. After reducing the fraction, the answer is 31/20
  6. In mixed form: 111/20

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