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Subtract 8/10 from 4/7

4/7 - 8/10 is -8/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 10 is 70
  2. For the 1st fraction, since 7 × 10 = 70,
    4/7 = 4 × 10/7 × 10 = 40/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    8/10 = 8 × 7/10 × 7 = 56/70
  4. Subtract the two fractions:
    40/70 - 56/70 = 40 - 56/70 = -16/70
  5. After reducing the fraction, the answer is -8/35

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