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Add 12/80 and 5/81

12/80 + 5/81 is 343/1620.

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,
    12/80 = 12 × 81/80 × 81 = 972/6480
  3. Likewise, for the 2nd fraction, since 81 × 80 = 6480,
    5/81 = 5 × 80/81 × 80 = 400/6480
  4. Add the two like fractions:
    972/6480 + 400/6480 = 972 + 400/6480 = 1372/6480
  5. 1372/6480 simplified gives 343/1620
  6. So, 12/80 + 5/81 = 343/1620

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