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Add 20/27 and 21/56

20/27 + 21/56 is 241/216.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 56 is 1512

    Next, find the equivalent fraction of both fractional numbers with denominator 1512
  2. For the 1st fraction, since 27 × 56 = 1512,
    20/27 = 20 × 56/27 × 56 = 1120/1512
  3. Likewise, for the 2nd fraction, since 56 × 27 = 1512,
    21/56 = 21 × 27/56 × 27 = 567/1512
  4. Add the two like fractions:
    1120/1512 + 567/1512 = 1120 + 567/1512 = 1687/1512
  5. 1687/1512 simplified gives 241/216
  6. So, 20/27 + 21/56 = 241/216
    In mixed form: 125/216

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