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Add 90/12 and 12/63

1st number: 7 6/12, 2nd number: 12/63

90/12 + 12/63 is 323/42.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 12 × 21 = 252,
    90/12 = 90 × 21/12 × 21 = 1890/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    12/63 = 12 × 4/63 × 4 = 48/252
  4. Add the two like fractions:
    1890/252 + 48/252 = 1890 + 48/252 = 1938/252
  5. 1938/252 simplified gives 323/42
  6. So, 90/12 + 12/63 = 323/42
    In mixed form: 729/42

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