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Add 15/56 and 15/90

15/56 + 15/90 is 73/168.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 90 is 2520
  2. For the 1st fraction, since 56 × 45 = 2520,
    15/56 = 15 × 45/56 × 45 = 675/2520
  3. Likewise, for the 2nd fraction, since 90 × 28 = 2520,
    15/90 = 15 × 28/90 × 28 = 420/2520
  4. Add the two fractions:
    675/2520 + 420/2520 = 675 + 420/2520 = 1095/2520
  5. After reducing the fraction, the answer is 73/168

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