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Subtract 20/84 from 5/6

5/6 - 20/84 is 25/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 84 is 84
  2. For the 1st fraction, since 6 × 14 = 84,
    5/6 = 5 × 14/6 × 14 = 70/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    20/84 = 20 × 1/84 × 1 = 20/84
  4. Subtract the two fractions:
    70/84 - 20/84 = 70 - 20/84 = 50/84
  5. After reducing the fraction, the answer is 25/42

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