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Subtract 9/21 from 5/14

5/14 - 9/21 is -1/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 21 is 42
  2. For the 1st fraction, since 14 × 3 = 42,
    5/14 = 5 × 3/14 × 3 = 15/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    9/21 = 9 × 2/21 × 2 = 18/42
  4. Subtract the two fractions:
    15/42 - 18/42 = 15 - 18/42 = -3/42
  5. After reducing the fraction, the answer is -1/14

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