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Add 9/84 and 12/63

9/84 + 12/63 is 25/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 63 is 252
  2. For the 1st fraction, since 84 × 3 = 252,
    9/84 = 9 × 3/84 × 3 = 27/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    12/63 = 12 × 4/63 × 4 = 48/252
  4. Add the two fractions:
    27/252 + 48/252 = 27 + 48/252 = 75/252
  5. After reducing the fraction, the answer is 25/84

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