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Add 15/90 and 9/56

15/90 + 9/56 is 55/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 56 is 2520
  2. For the 1st fraction, since 90 × 28 = 2520,
    15/90 = 15 × 28/90 × 28 = 420/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    9/56 = 9 × 45/56 × 45 = 405/2520
  4. Add the two fractions:
    420/2520 + 405/2520 = 420 + 405/2520 = 825/2520
  5. After reducing the fraction, the answer is 55/168

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