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Add 15/81 and 8/45

15/81 + 8/45 is 49/135.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 45 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 81 × 5 = 405,
    15/81 = 15 × 5/81 × 5 = 75/405
  3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
    8/45 = 8 × 9/45 × 9 = 72/405
  4. Add the two like fractions:
    75/405 + 72/405 = 75 + 72/405 = 147/405
  5. 147/405 simplified gives 49/135
  6. So, 15/81 + 8/45 = 49/135

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