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Add 12/18 and 27/42

12/18 + 27/42 is 55/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 42 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    12/18 = 12 × 7/18 × 7 = 84/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    27/42 = 27 × 3/42 × 3 = 81/126
  4. Add the two fractions:
    84/126 + 81/126 = 84 + 81/126 = 165/126
  5. 165/126 simplified gives 55/42
  6. So, 12/18 + 27/42 = 55/42
    In mixed form: 113/42

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