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Add 81/90 and 27/54

81/90 + 27/54 is 7/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 90 × 3 = 270,
    81/90 = 81 × 3/90 × 3 = 243/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    27/54 = 27 × 5/54 × 5 = 135/270
  4. Add the two like fractions:
    243/270 + 135/270 = 243 + 135/270 = 378/270
  5. 378/270 simplified gives 7/5
  6. So, 81/90 + 27/54 = 7/5
    In mixed form: 12/5

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