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Add 18/30 and 35/81

18/30 + 35/81 is 418/405.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 81 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 30 × 27 = 810,
    18/30 = 18 × 27/30 × 27 = 486/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    35/81 = 35 × 10/81 × 10 = 350/810
  4. Add the two like fractions:
    486/810 + 350/810 = 486 + 350/810 = 836/810
  5. 836/810 simplified gives 418/405
  6. So, 18/30 + 35/81 = 418/405
    In mixed form: 113/405

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