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Add 81/20 and 45/9

1st number: 4 1/20, 2nd number: 5 0/9

81/20 + 45/9 is 181/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    81/20 = 81 × 9/20 × 9 = 729/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    45/9 = 45 × 20/9 × 20 = 900/180
  4. Add the two like fractions:
    729/180 + 900/180 = 729 + 900/180 = 1629/180
  5. 1629/180 simplified gives 181/20
  6. So, 81/20 + 45/9 = 181/20
    In mixed form: 91/20

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