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Add 81/90 and 54/36

1st number: 81/90, 2nd number: 1 18/36

81/90 + 54/36 is 12/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 90 × 2 = 180,
    81/90 = 81 × 2/90 × 2 = 162/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    54/36 = 54 × 5/36 × 5 = 270/180
  4. Add the two like fractions:
    162/180 + 270/180 = 162 + 270/180 = 432/180
  5. 432/180 simplified gives 12/5
  6. So, 81/90 + 54/36 = 12/5
    In mixed form: 22/5

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