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Add 21/28 and 4/75

21/28 + 4/75 is 241/300.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 75 is 2100
  2. For the 1st fraction, since 28 × 75 = 2100,
    21/28 = 21 × 75/28 × 75 = 1575/2100
  3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
    4/75 = 4 × 28/75 × 28 = 112/2100
  4. Add the two fractions:
    1575/2100 + 112/2100 = 1575 + 112/2100 = 1687/2100
  5. After reducing the fraction, the answer is 241/300

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