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Add 5/60 and 21/63

5/60 + 21/63 is 5/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 63 is 1260
  2. For the 1st fraction, since 60 × 21 = 1260,
    5/60 = 5 × 21/60 × 21 = 105/1260
  3. Likewise, for the 2nd fraction, since 63 × 20 = 1260,
    21/63 = 21 × 20/63 × 20 = 420/1260
  4. Add the two fractions:
    105/1260 + 420/1260 = 105 + 420/1260 = 525/1260
  5. After reducing the fraction, the answer is 5/12

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