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Add 27/30 and 81/12

1st number: 27/30, 2nd number: 6 9/12

27/30 + 81/12 is 153/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    27/30 = 27 × 2/30 × 2 = 54/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    81/12 = 81 × 5/12 × 5 = 405/60
  4. Add the two like fractions:
    54/60 + 405/60 = 54 + 405/60 = 459/60
  5. 459/60 simplified gives 153/20
  6. So, 27/30 + 81/12 = 153/20
    In mixed form: 713/20

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