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Add 4/63 and 5/20

4/63 + 5/20 is 79/252.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 20 is 1260
  2. For the 1st fraction, since 63 × 20 = 1260,
    4/63 = 4 × 20/63 × 20 = 80/1260
  3. Likewise, for the 2nd fraction, since 20 × 63 = 1260,
    5/20 = 5 × 63/20 × 63 = 315/1260
  4. Add the two fractions:
    80/1260 + 315/1260 = 80 + 315/1260 = 395/1260
  5. After reducing the fraction, the answer is 79/252

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