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Subtract 42/50 from 1/25

1/25 - 42/50 is -4/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 50 is 50

    Next, find the equivalent fraction of both fractional numbers with denominator 50
  2. For the 1st fraction, since 25 × 2 = 50,
    1/25 = 1 × 2/25 × 2 = 2/50
  3. Likewise, for the 2nd fraction, since 50 × 1 = 50,
    42/50 = 42 × 1/50 × 1 = 42/50
  4. Subtract the two like fractions:
    2/50 - 42/50 = 2 - 42/50 = -40/50
  5. After reducing the fraction, the answer is -4/5

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