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Add 27/54 and 28/42

27/54 + 28/42 is 7/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    27/54 = 27 × 7/54 × 7 = 189/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    28/42 = 28 × 9/42 × 9 = 252/378
  4. Add the two like fractions:
    189/378 + 252/378 = 189 + 252/378 = 441/378
  5. 441/378 simplified gives 7/6
  6. So, 27/54 + 28/42 = 7/6
    In mixed form: 11/6

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