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Add 10/84 and 12/63

10/84 + 12/63 is 13/42.

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,
    10/84 = 10 × 3/84 × 3 = 30/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    12/63 = 12 × 4/63 × 4 = 48/252
  4. Add the two fractions:
    30/252 + 48/252 = 30 + 48/252 = 78/252
  5. 78/252 simplified gives 13/42
  6. So, 10/84 + 12/63 = 13/42

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