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Add 81/4 and 9/5

1st number: 20 1/4, 2nd number: 1 4/5

81/4 + 9/5 is 441/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    81/4 = 81 × 5/4 × 5 = 405/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    9/5 = 9 × 4/5 × 4 = 36/20
  4. Add the two like fractions:
    405/20 + 36/20 = 405 + 36/20 = 441/20
  5. So, 81/4 + 9/5 = 441/20
    In mixed form: 221/20

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