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Subtract 3/10 from 2/5

2/5 - 3/10 is 1/10.

Steps for subtracting fractions

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

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