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Subtract 7/8 from 5/10

5/10 - 7/8 is -3/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 8 is 40
  2. For the 1st fraction, since 10 × 4 = 40,
    5/10 = 5 × 4/10 × 4 = 20/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    7/8 = 7 × 5/8 × 5 = 35/40
  4. Subtract the two fractions:
    20/40 - 35/40 = 20 - 35/40 = -15/40
  5. After reducing the fraction, the answer is -3/8

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