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Add 9/15 and 3/18

9/15 + 3/18 is 23/30.

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,
    9/15 = 9 × 6/15 × 6 = 54/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    3/18 = 3 × 5/18 × 5 = 15/90
  4. Add the two like fractions:
    54/90 + 15/90 = 54 + 15/90 = 69/90
  5. 69/90 simplified gives 23/30
  6. So, 9/15 + 3/18 = 23/30

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