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Add 27/15 and 20/84

1st number: 1 12/15, 2nd number: 20/84

27/15 + 20/84 is 214/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 84 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 15 × 28 = 420,
    27/15 = 27 × 28/15 × 28 = 756/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    20/84 = 20 × 5/84 × 5 = 100/420
  4. Add the two like fractions:
    756/420 + 100/420 = 756 + 100/420 = 856/420
  5. 856/420 simplified gives 214/105
  6. So, 27/15 + 20/84 = 214/105
    In mixed form: 24/105

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