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Add 18/15 and 12/18

1st number: 1 3/15, 2nd number: 12/18

18/15 + 12/18 is 28/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 15 × 6 = 90,
    18/15 = 18 × 6/15 × 6 = 108/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    12/18 = 12 × 5/18 × 5 = 60/90
  4. Add the two like fractions:
    108/90 + 60/90 = 108 + 60/90 = 168/90
  5. 168/90 simplified gives 28/15
  6. So, 18/15 + 12/18 = 28/15
    In mixed form: 113/15

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