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Add 1/81 and 8/40

1/81 + 8/40 is 86/405.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 3240
  2. For the 1st fraction, since 81 × 40 = 3240,
    1/81 = 1 × 40/81 × 40 = 40/3240
  3. Likewise, for the 2nd fraction, since 40 × 81 = 3240,
    8/40 = 8 × 81/40 × 81 = 648/3240
  4. Add the two like fractions:
    40/3240 + 648/3240 = 40 + 648/3240 = 688/3240
  5. 688/3240 simplified gives 86/405
  6. So, 1/81 + 8/40 = 86/405

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