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Subtract 15/63 from 1/18

1/18 - 15/63 is -23/126.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    1/18 = 1 × 7/18 × 7 = 7/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    15/63 = 15 × 2/63 × 2 = 30/126
  4. Subtract the two like fractions:
    7/126 - 30/126 = 7 - 30/126 = -23/126

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