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Subtract 49/50 from 1/42

1/42 - 49/50 is -502/525.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 50 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 42 × 25 = 1050,
    1/42 = 1 × 25/42 × 25 = 25/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    49/50 = 49 × 21/50 × 21 = 1029/1050
  4. Subtract the two like fractions:
    25/1050 - 1029/1050 = 25 - 1029/1050 = -1004/1050
  5. After reducing the fraction, the answer is -502/525

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