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Add 3/20 and 84/81

1st number: 3/20, 2nd number: 1 3/81

3/20 + 84/81 is 641/540.

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,
    3/20 = 3 × 81/20 × 81 = 243/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    84/81 = 84 × 20/81 × 20 = 1680/1620
  4. Add the two like fractions:
    243/1620 + 1680/1620 = 243 + 1680/1620 = 1923/1620
  5. 1923/1620 simplified gives 641/540
  6. So, 3/20 + 84/81 = 641/540
    In mixed form: 1101/540

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