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Subtract 8/18 from 1/63

1/63 - 8/18 is -3/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 63 × 2 = 126,
    1/63 = 1 × 2/63 × 2 = 2/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    8/18 = 8 × 7/18 × 7 = 56/126
  4. Subtract the two like fractions:
    2/126 - 56/126 = 2 - 56/126 = -54/126
  5. After reducing the fraction, the answer is -3/7

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