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Add 28/15 and 90/25

1st number: 1 13/15, 2nd number: 3 15/25

28/15 + 90/25 is 82/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 25 is 75

    Next, find the equivalent fraction of both fractional numbers with denominator 75
  2. For the 1st fraction, since 15 × 5 = 75,
    28/15 = 28 × 5/15 × 5 = 140/75
  3. Likewise, for the 2nd fraction, since 25 × 3 = 75,
    90/25 = 90 × 3/25 × 3 = 270/75
  4. Add the two like fractions:
    140/75 + 270/75 = 140 + 270/75 = 410/75
  5. 410/75 simplified gives 82/15
  6. So, 28/15 + 90/25 = 82/15
    In mixed form: 57/15

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