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Add 18/81 and 30/40

18/81 + 30/40 is 35/36.

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,
    18/81 = 18 × 40/81 × 40 = 720/3240
  3. Likewise, for the 2nd fraction, since 40 × 81 = 3240,
    30/40 = 30 × 81/40 × 81 = 2430/3240
  4. Add the two like fractions:
    720/3240 + 2430/3240 = 720 + 2430/3240 = 3150/3240
  5. 3150/3240 simplified gives 35/36
  6. So, 18/81 + 30/40 = 35/36

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