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Subtract 6/8 from 1/7

1/7 - 6/8 is -17/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 8 is 56
  2. For the 1st fraction, since 7 × 8 = 56,
    1/7 = 1 × 8/7 × 8 = 8/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    6/8 = 6 × 7/8 × 7 = 42/56
  4. Subtract the two fractions:
    8/56 - 42/56 = 8 - 42/56 = -34/56
  5. After reducing the fraction, the answer is -17/28

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