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Subtract 5/63 from 6/21

6/21 - 5/63 is 13/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    6/21 = 6 × 3/21 × 3 = 18/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    5/63 = 5 × 1/63 × 1 = 5/63
  4. Subtract the two fractions:
    18/63 - 5/63 = 18 - 5/63 = 13/63

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