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Add 27/54 and 20/42

27/54 + 20/42 is 41/42.

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,
    20/42 = 20 × 9/42 × 9 = 180/378
  4. Add the two like fractions:
    189/378 + 180/378 = 189 + 180/378 = 369/378
  5. 369/378 simplified gives 41/42
  6. So, 27/54 + 20/42 = 41/42

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