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Add 3/8 and 20/81

3/8 + 20/81 is 403/648.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 81 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 8 × 81 = 648,
    3/8 = 3 × 81/8 × 81 = 243/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    20/81 = 20 × 8/81 × 8 = 160/648
  4. Add the two like fractions:
    243/648 + 160/648 = 243 + 160/648 = 403/648
  5. So, 3/8 + 20/81 = 403/648

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