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Subtract 3/10 from 4/8

4/8 - 3/10 is 1/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 10 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    4/8 = 4 × 5/8 × 5 = 20/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    3/10 = 3 × 4/10 × 4 = 12/40
  4. Subtract the two fractions:
    20/40 - 12/40 = 20 - 12/40 = 8/40
  5. After reducing the fraction, the answer is 1/5

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