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Add 18/15 and 27/12

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

18/15 + 27/12 is 69/20.

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,
    18/15 = 18 × 4/15 × 4 = 72/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    27/12 = 27 × 5/12 × 5 = 135/60
  4. Add the two like fractions:
    72/60 + 135/60 = 72 + 135/60 = 207/60
  5. 207/60 simplified gives 69/20
  6. So, 18/15 + 27/12 = 69/20
    In mixed form: 39/20

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