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Add 9/20 and 48/81

9/20 + 48/81 is 563/540.

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,
    9/20 = 9 × 81/20 × 81 = 729/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    48/81 = 48 × 20/81 × 20 = 960/1620
  4. Add the two like fractions:
    729/1620 + 960/1620 = 729 + 960/1620 = 1689/1620
  5. 1689/1620 simplified gives 563/540
  6. So, 9/20 + 48/81 = 563/540
    In mixed form: 123/540

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