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Add 18/80 and 2/81

18/80 + 2/81 is 809/3240.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 81 is 6480

    Next, find the equivalent fraction of both fractional numbers with denominator 6480
  2. For the 1st fraction, since 80 × 81 = 6480,
    18/80 = 18 × 81/80 × 81 = 1458/6480
  3. Likewise, for the 2nd fraction, since 81 × 80 = 6480,
    2/81 = 2 × 80/81 × 80 = 160/6480
  4. Add the two like fractions:
    1458/6480 + 160/6480 = 1458 + 160/6480 = 1618/6480
  5. 1618/6480 simplified gives 809/3240
  6. So, 18/80 + 2/81 = 809/3240

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