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Add 40/80 and 6/81

40/80 + 6/81 is 31/54.

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,
    40/80 = 40 × 81/80 × 81 = 3240/6480
  3. Likewise, for the 2nd fraction, since 81 × 80 = 6480,
    6/81 = 6 × 80/81 × 80 = 480/6480
  4. Add the two like fractions:
    3240/6480 + 480/6480 = 3240 + 480/6480 = 3720/6480
  5. 3720/6480 simplified gives 31/54
  6. So, 40/80 + 6/81 = 31/54

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