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Subtract 2/4 from 4/20

4/20 - 2/4 is -3/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 4 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    4/20 = 4 × 1/20 × 1 = 4/20
  3. Likewise, for the 2nd fraction, since 4 × 5 = 20,
    2/4 = 2 × 5/4 × 5 = 10/20
  4. Subtract the two like fractions:
    4/20 - 10/20 = 4 - 10/20 = -6/20
  5. After reducing the fraction, the answer is -3/10

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