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Add 28/15 and 25/18

1st number: 1 13/15, 2nd number: 1 7/18

28/15 + 25/18 is 293/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    28/15 = 28 × 6/15 × 6 = 168/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    25/18 = 25 × 5/18 × 5 = 125/90
  4. Add the two fractions:
    168/90 + 125/90 = 168 + 125/90 = 293/90
  5. So, 28/15 + 25/18 = 293/90
    In mixed form: 323/90

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