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Subtract 8/10 from 5/8

5/8 - 8/10 is -7/40.

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,
    5/8 = 5 × 5/8 × 5 = 25/40
  3. Likewise, for the 2nd fraction, since 10 × 4 = 40,
    8/10 = 8 × 4/10 × 4 = 32/40
  4. Subtract the two fractions:
    25/40 - 32/40 = 25 - 32/40 = -7/40

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