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Subtract 2/20 from 2/5

2/5 - 2/20 is 3/10.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 20 is 20
  2. For the 1st fraction, since 5 × 4 = 20,
    2/5 = 2 × 4/5 × 4 = 8/20
  3. Likewise, for the 2nd fraction, since 20 × 1 = 20,
    2/20 = 2 × 1/20 × 1 = 2/20
  4. Subtract the two fractions:
    8/20 - 2/20 = 8 - 2/20 = 6/20
  5. After reducing the fraction, the answer is 3/10

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