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Add 5/28 and 15/90

5/28 + 15/90 is 29/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    5/28 = 5 × 45/28 × 45 = 225/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    15/90 = 15 × 14/90 × 14 = 210/1260
  4. Add the two fractions:
    225/1260 + 210/1260 = 225 + 210/1260 = 435/1260
  5. After reducing the fraction, the answer is 29/84

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