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Subtract 10/7 from 7/18

1st number: 7/18, 2nd number: 1 3/7

7/18 - 10/7 is -131/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 7 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    7/18 = 7 × 7/18 × 7 = 49/126
  3. Likewise, for the 2nd fraction, since 7 × 18 = 126,
    10/7 = 10 × 18/7 × 18 = 180/126
  4. Subtract the two fractions:
    49/126 - 180/126 = 49 - 180/126 = -131/126

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