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Add 18/12 and 9/60

1st number: 1 6/12, 2nd number: 9/60

18/12 + 9/60 is 33/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 60 is 60
  2. For the 1st fraction, since 12 × 5 = 60,
    18/12 = 18 × 5/12 × 5 = 90/60
  3. Likewise, for the 2nd fraction, since 60 × 1 = 60,
    9/60 = 9 × 1/60 × 1 = 9/60
  4. Add the two fractions:
    90/60 + 9/60 = 90 + 9/60 = 99/60
  5. 99/60 simplified gives 33/20
  6. So, 18/12 + 9/60 = 33/20
    In mixed form: 113/20

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