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Subtract 21/9 from 50/84

1st number: 50/84, 2nd number: 2 3/9

50/84 - 21/9 is -73/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 9 is 252
  2. For the 1st fraction, since 84 × 3 = 252,
    50/84 = 50 × 3/84 × 3 = 150/252
  3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
    21/9 = 21 × 28/9 × 28 = 588/252
  4. Subtract the two fractions:
    150/252 - 588/252 = 150 - 588/252 = -438/252
  5. After reducing the fraction, the answer is -73/42

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