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Add 15/28 and 4/63

15/28 + 4/63 is 151/252.

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,
    15/28 = 15 × 9/28 × 9 = 135/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    4/63 = 4 × 4/63 × 4 = 16/252
  4. Add the two fractions:
    135/252 + 16/252 = 135 + 16/252 = 151/252

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