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Add 81/63 and 10/12

1st number: 1 18/63, 2nd number: 10/12

81/63 + 10/12 is 89/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 12 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 63 × 4 = 252,
    81/63 = 81 × 4/63 × 4 = 324/252
  3. Likewise, for the 2nd fraction, since 12 × 21 = 252,
    10/12 = 10 × 21/12 × 21 = 210/252
  4. Add the two like fractions:
    324/252 + 210/252 = 324 + 210/252 = 534/252
  5. 534/252 simplified gives 89/42
  6. So, 81/63 + 10/12 = 89/42
    In mixed form: 25/42

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