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Add 5/81 and 4/30

5/81 + 4/30 is 79/405.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 810
  2. For the 1st fraction, since 81 × 10 = 810,
    5/81 = 5 × 10/81 × 10 = 50/810
  3. Likewise, for the 2nd fraction, since 30 × 27 = 810,
    4/30 = 4 × 27/30 × 27 = 108/810
  4. Add the two like fractions:
    50/810 + 108/810 = 50 + 108/810 = 158/810
  5. 158/810 simplified gives 79/405
  6. So, 5/81 + 4/30 = 79/405

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