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Subtract 5/18 from 6/7

6/7 - 5/18 is 73/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 18 is 126
  2. For the 1st fraction, since 7 × 18 = 126,
    6/7 = 6 × 18/7 × 18 = 108/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    5/18 = 5 × 7/18 × 7 = 35/126
  4. Subtract the two fractions:
    108/126 - 35/126 = 108 - 35/126 = 73/126

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