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Subtract 1/63 from 25/42

25/42 - 1/63 is 73/126.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 63 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    25/42 = 25 × 3/42 × 3 = 75/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    1/63 = 1 × 2/63 × 2 = 2/126
  4. Subtract the two fractions:
    75/126 - 2/126 = 75 - 2/126 = 73/126

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