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Subtract 12/50 from 5/42

5/42 - 12/50 is -127/1050.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 50 is 1050
  2. For the 1st fraction, since 42 × 25 = 1050,
    5/42 = 5 × 25/42 × 25 = 125/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    12/50 = 12 × 21/50 × 21 = 252/1050
  4. Subtract the two fractions:
    125/1050 - 252/1050 = 125 - 252/1050 = -127/1050

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