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Add 15/20 and 27/84

15/20 + 27/84 is 15/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 84 is 420
  2. For the 1st fraction, since 20 × 21 = 420,
    15/20 = 15 × 21/20 × 21 = 315/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    27/84 = 27 × 5/84 × 5 = 135/420
  4. Add the two fractions:
    315/420 + 135/420 = 315 + 135/420 = 450/420
  5. 450/420 simplified gives 15/14
  6. So, 15/20 + 27/84 = 15/14
    In mixed form: 11/14

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