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Subtract 10/42 from 4/25

4/25 - 10/42 is -41/525.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 42 is 1050

    Next, find the equivalent fraction of both fractional numbers with denominator 1050
  2. For the 1st fraction, since 25 × 42 = 1050,
    4/25 = 4 × 42/25 × 42 = 168/1050
  3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
    10/42 = 10 × 25/42 × 25 = 250/1050
  4. Subtract the two like fractions:
    168/1050 - 250/1050 = 168 - 250/1050 = -82/1050
  5. After reducing the fraction, the answer is -41/525

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