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Add 9/15 and 15/20

9/15 + 15/20 is 27/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    9/15 = 9 × 4/15 × 4 = 36/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    15/20 = 15 × 3/20 × 3 = 45/60
  4. Add the two like fractions:
    36/60 + 45/60 = 36 + 45/60 = 81/60
  5. 81/60 simplified gives 27/20
  6. So, 9/15 + 15/20 = 27/20
    In mixed form: 17/20

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