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Add 4/12 and 5/81

4/12 + 5/81 is 32/81.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 81 is 324

    Next, find the equivalent fraction of both fractional numbers with denominator 324
  2. For the 1st fraction, since 12 × 27 = 324,
    4/12 = 4 × 27/12 × 27 = 108/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    5/81 = 5 × 4/81 × 4 = 20/324
  4. Add the two like fractions:
    108/324 + 20/324 = 108 + 20/324 = 128/324
  5. 128/324 simplified gives 32/81
  6. So, 4/12 + 5/81 = 32/81

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