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Add 3/9 and 25/20

1st number: 3/9, 2nd number: 1 5/20

3/9 + 25/20 is 19/12.

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,
    25/20 = 25 × 9/20 × 9 = 225/180
  4. Add the two fractions:
    60/180 + 225/180 = 60 + 225/180 = 285/180
  5. 285/180 simplified gives 19/12
  6. So, 3/9 + 25/20 = 19/12
    In mixed form: 17/12

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