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Subtract 4/8 from 4/5

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

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    4/5 = 4 × 8/5 × 8 = 32/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    4/8 = 4 × 5/8 × 5 = 20/40
  4. Subtract the two like fractions:
    32/40 - 20/40 = 32 - 20/40 = 12/40
  5. After reducing the fraction, the answer is 3/10

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