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Subtract 20/40 from 1/6

1/6 - 20/40 is -1/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 40 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 6 × 20 = 120,
    1/6 = 1 × 20/6 × 20 = 20/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    20/40 = 20 × 3/40 × 3 = 60/120
  4. Subtract the two like fractions:
    20/120 - 60/120 = 20 - 60/120 = -40/120
  5. After reducing the fraction, the answer is -1/3

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