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Add 21/28 and 36/27

1st number: 21/28, 2nd number: 1 9/27

21/28 + 36/27 is 25/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 27 is 756

    Next, find the equivalent fraction of both fractional numbers with denominator 756
  2. For the 1st fraction, since 28 × 27 = 756,
    21/28 = 21 × 27/28 × 27 = 567/756
  3. Likewise, for the 2nd fraction, since 27 × 28 = 756,
    36/27 = 36 × 28/27 × 28 = 1008/756
  4. Add the two like fractions:
    567/756 + 1008/756 = 567 + 1008/756 = 1575/756
  5. 1575/756 simplified gives 25/12
  6. So, 21/28 + 36/27 = 25/12
    In mixed form: 21/12

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