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Add 1/42 and 4/81

1/42 + 4/81 is 83/1134.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 81 is 1134
  2. For the 1st fraction, since 42 × 27 = 1134,
    1/42 = 1 × 27/42 × 27 = 27/1134
  3. Likewise, for the 2nd fraction, since 81 × 14 = 1134,
    4/81 = 4 × 14/81 × 14 = 56/1134
  4. Add the two fractions:
    27/1134 + 56/1134 = 27 + 56/1134 = 83/1134

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