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Add 4/21 and 5/6

4/21 + 5/6 is 43/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 6 is 42
  2. For the 1st fraction, since 21 × 2 = 42,
    4/21 = 4 × 2/21 × 2 = 8/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    5/6 = 5 × 7/6 × 7 = 35/42
  4. Add the two fractions:
    8/42 + 35/42 = 8 + 35/42 = 43/42
  5. In mixed form: 11/42

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