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Subtract 1/6 from 5/21

5/21 - 1/6 is 1/14.

Steps for subtracting 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,
    5/21 = 5 × 2/21 × 2 = 10/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    1/6 = 1 × 7/6 × 7 = 7/42
  4. Subtract the two fractions:
    10/42 - 7/42 = 10 - 7/42 = 3/42
  5. After reducing the fraction, the answer is 1/14

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