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Add 3/7 and 42/81

3/7 + 42/81 is 179/189.

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,
    3/7 = 3 × 81/7 × 81 = 243/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    42/81 = 42 × 7/81 × 7 = 294/567
  4. Add the two like fractions:
    243/567 + 294/567 = 243 + 294/567 = 537/567
  5. 537/567 simplified gives 179/189
  6. So, 3/7 + 42/81 = 179/189

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