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Add 12/40 and 5/63

12/40 + 5/63 is 239/630.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 63 is 2520
  2. For the 1st fraction, since 40 × 63 = 2520,
    12/40 = 12 × 63/40 × 63 = 756/2520
  3. Likewise, for the 2nd fraction, since 63 × 40 = 2520,
    5/63 = 5 × 40/63 × 40 = 200/2520
  4. Add the two fractions:
    756/2520 + 200/2520 = 756 + 200/2520 = 956/2520
  5. After reducing the fraction, the answer is 239/630

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