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Add 5/20 and 49/81

5/20 + 49/81 is 277/324.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 81 is 1620

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 20 × 81 = 1620,
    5/20 = 5 × 81/20 × 81 = 405/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    49/81 = 49 × 20/81 × 20 = 980/1620
  4. Add the two like fractions:
    405/1620 + 980/1620 = 405 + 980/1620 = 1385/1620
  5. 1385/1620 simplified gives 277/324
  6. So, 5/20 + 49/81 = 277/324

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