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Add 27/30 and 54/90

27/30 + 54/90 is 3/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 90 is 90
  2. For the 1st fraction, since 30 × 3 = 90,
    27/30 = 27 × 3/30 × 3 = 81/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    54/90 = 54 × 1/90 × 1 = 54/90
  4. Add the two fractions:
    81/90 + 54/90 = 81 + 54/90 = 135/90
  5. 135/90 simplified gives 3/2
  6. So, 27/30 + 54/90 = 3/2
    In mixed form: 11/2

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