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Subtract 14/16 from 5/21

5/21 - 14/16 is -107/168.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336
  2. For the 1st fraction, since 21 × 16 = 336,
    5/21 = 5 × 16/21 × 16 = 80/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    14/16 = 14 × 21/16 × 21 = 294/336
  4. Subtract the two fractions:
    80/336 - 294/336 = 80 - 294/336 = -214/336
  5. After reducing the fraction, the answer is -107/168

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