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Add 27/15 and 81/12

1st number: 1 12/15, 2nd number: 6 9/12

27/15 + 81/12 is 171/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    27/15 = 27 × 4/15 × 4 = 108/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    81/12 = 81 × 5/12 × 5 = 405/60
  4. Add the two like fractions:
    108/60 + 405/60 = 108 + 405/60 = 513/60
  5. 513/60 simplified gives 171/20
  6. So, 27/15 + 81/12 = 171/20
    In mixed form: 811/20

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