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Subtract 1/8 from 2/20

2/20 - 1/8 is -1/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40

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

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