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Add 81/12 and 35/15

1st number: 6 9/12, 2nd number: 2 5/15

81/12 + 35/15 is 109/12.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    81/12 = 81 × 5/12 × 5 = 405/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    35/15 = 35 × 4/15 × 4 = 140/60
  4. Add the two like fractions:
    405/60 + 140/60 = 405 + 140/60 = 545/60
  5. 545/60 simplified gives 109/12
  6. So, 81/12 + 35/15 = 109/12
    In mixed form: 91/12

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