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Add 5/28 and 21/63

5/28 + 21/63 is 43/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 63 is 252
  2. For the 1st fraction, since 28 × 9 = 252,
    5/28 = 5 × 9/28 × 9 = 45/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    21/63 = 21 × 4/63 × 4 = 84/252
  4. Add the two fractions:
    45/252 + 84/252 = 45 + 84/252 = 129/252
  5. After reducing the fraction, the answer is 43/84

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