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Add 3/5 and 84/81

1st number: 3/5, 2nd number: 1 3/81

3/5 + 84/81 is 221/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 5 × 81 = 405,
    3/5 = 3 × 81/5 × 81 = 243/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    84/81 = 84 × 5/81 × 5 = 420/405
  4. Add the two like fractions:
    243/405 + 420/405 = 243 + 420/405 = 663/405
  5. 663/405 simplified gives 221/135
  6. So, 3/5 + 84/81 = 221/135
    In mixed form: 186/135

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