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Subtract 4/8 from 20/50

20/50 - 4/8 is -1/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 8 is 200

    Next, find the equivalent fraction of both fractional numbers with denominator 200
  2. For the 1st fraction, since 50 × 4 = 200,
    20/50 = 20 × 4/50 × 4 = 80/200
  3. Likewise, for the 2nd fraction, since 8 × 25 = 200,
    4/8 = 4 × 25/8 × 25 = 100/200
  4. Subtract the two like fractions:
    80/200 - 100/200 = 80 - 100/200 = -20/200
  5. After reducing the fraction, the answer is -1/10

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