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Add 5/8 and 42/81

5/8 + 42/81 is 247/216.

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,
    5/8 = 5 × 81/8 × 81 = 405/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    42/81 = 42 × 8/81 × 8 = 336/648
  4. Add the two like fractions:
    405/648 + 336/648 = 405 + 336/648 = 741/648
  5. 741/648 simplified gives 247/216
  6. So, 5/8 + 42/81 = 247/216
    In mixed form: 131/216

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