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Add 3/80 and 12/63

3/80 + 12/63 is 383/1680.

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,
    3/80 = 3 × 63/80 × 63 = 189/5040
  3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
    12/63 = 12 × 80/63 × 80 = 960/5040
  4. Add the two fractions:
    189/5040 + 960/5040 = 189 + 960/5040 = 1149/5040
  5. After reducing the fraction, the answer is 383/1680

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