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Add 81/4 and 27/10

1st number: 20 1/4, 2nd number: 2 7/10

81/4 + 27/10 is 459/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 10 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 10 × 2 = 20,
    27/10 = 27 × 2/10 × 2 = 54/20
  4. Add the two like fractions:
    405/20 + 54/20 = 405 + 54/20 = 459/20
  5. So, 81/4 + 27/10 = 459/20
    In mixed form: 2219/20

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