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Add 15/18 and 9/7

1st number: 15/18, 2nd number: 1 2/7

15/18 + 9/7 is 89/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 7 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    15/18 = 15 × 7/18 × 7 = 105/126
  3. Likewise, for the 2nd fraction, since 7 × 18 = 126,
    9/7 = 9 × 18/7 × 18 = 162/126
  4. Add the two like fractions:
    105/126 + 162/126 = 105 + 162/126 = 267/126
  5. 267/126 simplified gives 89/42
  6. So, 15/18 + 9/7 = 89/42
    In mixed form: 25/42

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