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Subtract 21/6 from 8/63

1st number: 8/63, 2nd number: 3 3/6

8/63 - 21/6 is -425/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 63 and 6 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 63 × 2 = 126,
    8/63 = 8 × 2/63 × 2 = 16/126
  3. Likewise, for the 2nd fraction, since 6 × 21 = 126,
    21/6 = 21 × 21/6 × 21 = 441/126
  4. Subtract the two like fractions:
    16/126 - 441/126 = 16 - 441/126 = -425/126

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