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Add 25/21 and 24/81

1st number: 1 4/21, 2nd number: 24/81

25/21 + 24/81 is 281/189.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 81 is 567

    Next, find the equivalent fraction of both fractional numbers with denominator 567
  2. For the 1st fraction, since 21 × 27 = 567,
    25/21 = 25 × 27/21 × 27 = 675/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    24/81 = 24 × 7/81 × 7 = 168/567
  4. Add the two like fractions:
    675/567 + 168/567 = 675 + 168/567 = 843/567
  5. 843/567 simplified gives 281/189
  6. So, 25/21 + 24/81 = 281/189
    In mixed form: 192/189

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