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Add 81/20 and 5/4

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

81/20 + 5/4 is 53/10.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    81/20 = 81 × 1/20 × 1 = 81/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    5/4 = 5 × 5/4 × 5 = 25/20
  4. Add the two like fractions:
    81/20 + 25/20 = 81 + 25/20 = 106/20
  5. 106/20 simplified gives 53/10
  6. So, 81/20 + 5/4 = 53/10
    In mixed form: 53/10

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