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Add 9/15 and 4/5

9/15 + 4/5 is 7/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 5 is 15

    Next, find the equivalent fraction of both fractional numbers with denominator 15
  2. For the 1st fraction, since 15 × 1 = 15,
    9/15 = 9 × 1/15 × 1 = 9/15
  3. Likewise, for the 2nd fraction, since 5 × 3 = 15,
    4/5 = 4 × 3/5 × 3 = 12/15
  4. Add the two like fractions:
    9/15 + 12/15 = 9 + 12/15 = 21/15
  5. 21/15 simplified gives 7/5
  6. So, 9/15 + 4/5 = 7/5
    In mixed form: 12/5

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