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Subtract 5/63 from 20/42

20/42 - 5/63 is 25/63.

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,
    20/42 = 20 × 3/42 × 3 = 60/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    5/63 = 5 × 2/63 × 2 = 10/126
  4. Subtract the two fractions:
    60/126 - 10/126 = 60 - 10/126 = 50/126
  5. After reducing the fraction, the answer is 25/63

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