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Add 1/7 and 42/81

1/7 + 42/81 is 125/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 81 is 567

    Next, find the equivalent fraction of both fractional numbers with denominator 567
  2. For the 1st fraction, since 7 × 81 = 567,
    1/7 = 1 × 81/7 × 81 = 81/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    42/81 = 42 × 7/81 × 7 = 294/567
  4. Add the two like fractions:
    81/567 + 294/567 = 81 + 294/567 = 375/567
  5. 375/567 simplified gives 125/189
  6. So, 1/7 + 42/81 = 125/189

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