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Subtract 12/20 from 8/14

8/14 - 12/20 is -1/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 20 is 140
  2. For the 1st fraction, since 14 × 10 = 140,
    8/14 = 8 × 10/14 × 10 = 80/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    12/20 = 12 × 7/20 × 7 = 84/140
  4. Subtract the two fractions:
    80/140 - 84/140 = 80 - 84/140 = -4/140
  5. After reducing the fraction, the answer is -1/35

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