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Subtract 20/84 from 5/9

5/9 - 20/84 is 20/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 84 is 252
  2. For the 1st fraction, since 9 × 28 = 252,
    5/9 = 5 × 28/9 × 28 = 140/252
  3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
    20/84 = 20 × 3/84 × 3 = 60/252
  4. Subtract the two fractions:
    140/252 - 60/252 = 140 - 60/252 = 80/252
  5. After reducing the fraction, the answer is 20/63

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