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Add 15/80 and 20/63

15/80 + 20/63 is 509/1008.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 63 is 5040
  2. For the 1st fraction, since 80 × 63 = 5040,
    15/80 = 15 × 63/80 × 63 = 945/5040
  3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
    20/63 = 20 × 80/63 × 80 = 1600/5040
  4. Add the two fractions:
    945/5040 + 1600/5040 = 945 + 1600/5040 = 2545/5040
  5. 2545/5040 simplified gives 509/1008
  6. So, 15/80 + 20/63 = 509/1008

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