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Add 81/90 and 30/81

81/90 + 30/81 is 343/270.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 81 is 810

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 90 × 9 = 810,
    81/90 = 81 × 9/90 × 9 = 729/810
  3. Likewise, for the 2nd fraction, since 81 × 10 = 810,
    30/81 = 30 × 10/81 × 10 = 300/810
  4. Add the two like fractions:
    729/810 + 300/810 = 729 + 300/810 = 1029/810
  5. 1029/810 simplified gives 343/270
  6. So, 81/90 + 30/81 = 343/270
    In mixed form: 173/270

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