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Subtract 10/18 from 1/7

1/7 - 10/18 is -26/63.

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,
    1/7 = 1 × 18/7 × 18 = 18/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    10/18 = 10 × 7/18 × 7 = 70/126
  4. Subtract the two fractions:
    18/126 - 70/126 = 18 - 70/126 = -52/126
  5. After reducing the fraction, the answer is -26/63

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