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Add 27/42 and 18/63

27/42 + 18/63 is 13/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 63 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    27/42 = 27 × 3/42 × 3 = 81/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    18/63 = 18 × 2/63 × 2 = 36/126
  4. Add the two fractions:
    81/126 + 36/126 = 81 + 36/126 = 117/126
  5. After reducing the fraction, the answer is 13/14

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