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Add 27/18 and 20/84

1st number: 1 9/18, 2nd number: 20/84

27/18 + 20/84 is 73/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 84 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 18 × 14 = 252,
    27/18 = 27 × 14/18 × 14 = 378/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    20/84 = 20 × 3/84 × 3 = 60/252
  4. Add the two like fractions:
    378/252 + 60/252 = 378 + 60/252 = 438/252
  5. 438/252 simplified gives 73/42
  6. So, 27/18 + 20/84 = 73/42
    In mixed form: 131/42

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