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Add 90/28 and 12/9

1st number: 3 6/28, 2nd number: 1 3/9

90/28 + 12/9 is 191/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 9 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    90/28 = 90 × 9/28 × 9 = 810/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    12/9 = 12 × 28/9 × 28 = 336/252
  4. Add the two like fractions:
    810/252 + 336/252 = 810 + 336/252 = 1146/252
  5. 1146/252 simplified gives 191/42
  6. So, 90/28 + 12/9 = 191/42
    In mixed form: 423/42

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