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Add 21/81 and 4/24

21/81 + 4/24 is 23/54.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 24 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 81 × 8 = 648,
    21/81 = 21 × 8/81 × 8 = 168/648
  3. Likewise, for the 2nd fraction, since 24 × 27 = 648,
    4/24 = 4 × 27/24 × 27 = 108/648
  4. Add the two like fractions:
    168/648 + 108/648 = 168 + 108/648 = 276/648
  5. 276/648 simplified gives 23/54
  6. So, 21/81 + 4/24 = 23/54

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