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Subtract 45/80 from 8/25

8/25 - 45/80 is -97/400.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 80 is 400

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 25 × 16 = 400,
    8/25 = 8 × 16/25 × 16 = 128/400
  3. Likewise, for the 2nd fraction, since 80 × 5 = 400,
    45/80 = 45 × 5/80 × 5 = 225/400
  4. Subtract the two like fractions:
    128/400 - 225/400 = 128 - 225/400 = -97/400

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