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Subtract 18/63 from 1/6

1/6 - 18/63 is -5/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 63 is 126
  2. For the 1st fraction, since 6 × 21 = 126,
    1/6 = 1 × 21/6 × 21 = 21/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    18/63 = 18 × 2/63 × 2 = 36/126
  4. Subtract the two fractions:
    21/126 - 36/126 = 21 - 36/126 = -15/126
  5. After reducing the fraction, the answer is -5/42

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