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Add 27/20 and 12/81

1st number: 1 7/20, 2nd number: 12/81

27/20 + 12/81 is 809/540.

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,
    27/20 = 27 × 81/20 × 81 = 2187/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    12/81 = 12 × 20/81 × 20 = 240/1620
  4. Add the two like fractions:
    2187/1620 + 240/1620 = 2187 + 240/1620 = 2427/1620
  5. 2427/1620 simplified gives 809/540
  6. So, 27/20 + 12/81 = 809/540
    In mixed form: 1269/540

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