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Subtract 8/20 from 15/50

15/50 - 8/20 is -1/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 50 and 20 is 100

    Next, find the equivalent fraction of both fractional numbers with denominator 100
  2. For the 1st fraction, since 50 × 2 = 100,
    15/50 = 15 × 2/50 × 2 = 30/100
  3. Likewise, for the 2nd fraction, since 20 × 5 = 100,
    8/20 = 8 × 5/20 × 5 = 40/100
  4. Subtract the two like fractions:
    30/100 - 40/100 = 30 - 40/100 = -10/100
  5. After reducing the fraction, the answer is -1/10

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