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Add 25/30 and 1/81

25/30 + 1/81 is 137/162.

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,
    25/30 = 25 × 27/30 × 27 = 675/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    1/81 = 1 × 10/81 × 10 = 10/810
  4. Add the two like fractions:
    675/810 + 10/810 = 675 + 10/810 = 685/810
  5. 685/810 simplified gives 137/162
  6. So, 25/30 + 1/81 = 137/162

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