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Add 21/56 and 70/75

21/56 + 70/75 is 157/120.

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,
    70/75 = 70 × 56/75 × 56 = 3920/4200
  4. Add the two like fractions:
    1575/4200 + 3920/4200 = 1575 + 3920/4200 = 5495/4200
  5. 5495/4200 simplified gives 157/120
  6. So, 21/56 + 70/75 = 157/120
    In mixed form: 137/120

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