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Subtract 12/25 from 9/80

9/80 - 12/25 is -147/400.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 400
  2. For the 1st fraction, since 80 × 5 = 400,
    9/80 = 9 × 5/80 × 5 = 45/400
  3. Likewise, for the 2nd fraction, since 25 × 16 = 400,
    12/25 = 12 × 16/25 × 16 = 192/400
  4. Subtract the two like fractions:
    45/400 - 192/400 = 45 - 192/400 = -147/400

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