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Subtract 28/40 from 10/25

10/25 - 28/40 is -3/10.

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,
    10/25 = 10 × 8/25 × 8 = 80/200
  3. Likewise, for the 2nd fraction, since 40 × 5 = 200,
    28/40 = 28 × 5/40 × 5 = 140/200
  4. Subtract the two like fractions:
    80/200 - 140/200 = 80 - 140/200 = -60/200
  5. After reducing the fraction, the answer is -3/10

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