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Add 8/20 and 15/63

8/20 + 15/63 is 67/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 63 is 1260
  2. For the 1st fraction, since 20 × 63 = 1260,
    8/20 = 8 × 63/20 × 63 = 504/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    15/63 = 15 × 20/63 × 20 = 300/1260
  4. Add the two fractions:
    504/1260 + 300/1260 = 504 + 300/1260 = 804/1260
  5. After reducing the fraction, the answer is 67/105

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