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Add 3/9 and 6/20

3/9 + 6/20 is 19/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 20 is 180
  2. For the 1st fraction, since 9 × 20 = 180,
    3/9 = 3 × 20/9 × 20 = 60/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    6/20 = 6 × 9/20 × 9 = 54/180
  4. Add the two fractions:
    60/180 + 54/180 = 60 + 54/180 = 114/180
  5. After reducing the fraction, the answer is 19/30

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