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Add 21/56 and 28/75

21/56 + 28/75 is 449/600.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 56 and 75 is 4200

    Next, find the equivalent fraction of both fractional numbers with denominator 4200
  2. For the 1st fraction, since 56 × 75 = 4200,
    21/56 = 21 × 75/56 × 75 = 1575/4200
  3. Likewise, for the 2nd fraction, since 75 × 56 = 4200,
    28/75 = 28 × 56/75 × 56 = 1568/4200
  4. Add the two like fractions:
    1575/4200 + 1568/4200 = 1575 + 1568/4200 = 3143/4200
  5. 3143/4200 simplified gives 449/600
  6. So, 21/56 + 28/75 = 449/600

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