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Add 28/42 and 45/54

28/42 + 45/54 is 3/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 54 is 378
  2. For the 1st fraction, since 42 × 9 = 378,
    28/42 = 28 × 9/42 × 9 = 252/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    45/54 = 45 × 7/54 × 7 = 315/378
  4. Add the two fractions:
    252/378 + 315/378 = 252 + 315/378 = 567/378
  5. After reducing the fraction, the answer is 3/2
  6. In mixed form: 11/2

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