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Add 81/4 and 40/20

1st number: 20 1/4, 2nd number: 2 0/20

81/4 + 40/20 is 89/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 20 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 20 × 1 = 20,
    40/20 = 40 × 1/20 × 1 = 40/20
  4. Add the two like fractions:
    405/20 + 40/20 = 405 + 40/20 = 445/20
  5. 445/20 simplified gives 89/4
  6. So, 81/4 + 40/20 = 89/4
    In mixed form: 221/4

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