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Add 6/40 and 5/81

6/40 + 5/81 is 343/1620.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 81 is 3240

    Next, find the equivalent fraction of both fractional numbers with denominator 3240
  2. For the 1st fraction, since 40 × 81 = 3240,
    6/40 = 6 × 81/40 × 81 = 486/3240
  3. Likewise, for the 2nd fraction, since 81 × 40 = 3240,
    5/81 = 5 × 40/81 × 40 = 200/3240
  4. Add the two like fractions:
    486/3240 + 200/3240 = 486 + 200/3240 = 686/3240
  5. 686/3240 simplified gives 343/1620
  6. So, 6/40 + 5/81 = 343/1620

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