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Add 28/45 and 15/12

1st number: 28/45, 2nd number: 1 3/12

28/45 + 15/12 is 337/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 12 is 180
  2. For the 1st fraction, since 45 × 4 = 180,
    28/45 = 28 × 4/45 × 4 = 112/180
  3. Likewise, for the 2nd fraction, since 12 × 15 = 180,
    15/12 = 15 × 15/12 × 15 = 225/180
  4. Add the two fractions:
    112/180 + 225/180 = 112 + 225/180 = 337/180
  5. In mixed form: 1157/180

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