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Subtract 6/21 from 1/2

1/2 - 6/21 is 3/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    1/2 = 1 × 21/2 × 21 = 21/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    6/21 = 6 × 2/21 × 2 = 12/42
  4. Subtract the two fractions:
    21/42 - 12/42 = 21 - 12/42 = 9/42
  5. After reducing the fraction, the answer is 3/14

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