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Subtract 18/40 from 8/25

8/25 - 18/40 is -13/100.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 40 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 25 × 8 = 200,
    8/25 = 8 × 8/25 × 8 = 64/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    18/40 = 18 × 5/40 × 5 = 90/200
  4. Subtract the two like fractions:
    64/200 - 90/200 = 64 - 90/200 = -26/200
  5. After reducing the fraction, the answer is -13/100

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