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Add 42/54 and 27/42

42/54 + 27/42 is 179/126.

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,
    42/54 = 42 × 7/54 × 7 = 294/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    27/42 = 27 × 9/42 × 9 = 243/378
  4. Add the two like fractions:
    294/378 + 243/378 = 294 + 243/378 = 537/378
  5. 537/378 simplified gives 179/126
  6. So, 42/54 + 27/42 = 179/126
    In mixed form: 153/126

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