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Add 16/20 and 3/9

16/20 + 3/9 is 17/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    16/20 = 16 × 9/20 × 9 = 144/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    3/9 = 3 × 20/9 × 20 = 60/180
  4. Add the two fractions:
    144/180 + 60/180 = 144 + 60/180 = 204/180
  5. After reducing the fraction, the answer is 17/15
  6. In mixed form: 12/15

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