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Subtract 12/63 from 8/30

8/30 - 12/63 is 8/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 63 is 630
  2. For the 1st fraction, since 30 × 21 = 630,
    8/30 = 8 × 21/30 × 21 = 168/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    12/63 = 12 × 10/63 × 10 = 120/630
  4. Subtract the two fractions:
    168/630 - 120/630 = 168 - 120/630 = 48/630
  5. After reducing the fraction, the answer is 8/105

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