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Subtract 45/50 from 8/40

8/40 - 45/50 is -7/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 50 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 40 × 5 = 200,
    8/40 = 8 × 5/40 × 5 = 40/200
  3. Likewise, for the 2nd fraction, since 50 × 4 = 200,
    45/50 = 45 × 4/50 × 4 = 180/200
  4. Subtract the two like fractions:
    40/200 - 180/200 = 40 - 180/200 = -140/200
  5. After reducing the fraction, the answer is -7/10

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