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Add 27/15 and 15/18

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

27/15 + 15/18 is 79/30.

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,
    27/15 = 27 × 6/15 × 6 = 162/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    15/18 = 15 × 5/18 × 5 = 75/90
  4. Add the two like fractions:
    162/90 + 75/90 = 162 + 75/90 = 237/90
  5. 237/90 simplified gives 79/30
  6. So, 27/15 + 15/18 = 79/30
    In mixed form: 219/30

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