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Add 18/12 and 3/20

1st number: 1 6/12, 2nd number: 3/20

18/12 + 3/20 is 33/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 20 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 20 × 3 = 60,
    3/20 = 3 × 3/20 × 3 = 9/60
  4. Add the two fractions:
    90/60 + 9/60 = 90 + 9/60 = 99/60
  5. After reducing the fraction, the answer is 33/20
  6. In mixed form: 113/20

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